|
Lawrence
M. Witmer, PhD
Department
of Biomedical Sciences
Heritage
College of Osteopathic Medicine
Ohio University
Athens, Ohio 45701 USA
Telephone: (740) 591-7712
E-mail: witmerL@ohiou.edu
individual
website: http://www.oucom.ohiou.edu/dbms-witmer/
WitmerLab website:
http://www.ohio.edu/witmerlab
WitmerLab YouTube website:
http://www.youtube.com/witmerlab
WitmerLab Facebook website:
http://www.facebook.com/witmerlab
WitmerLab Pick-and-Scalpel blog:
http://witmerlab.wordpress.com/
OUµCT website:
http://www.oucom.ohiou.edu/ou-microct/
Personal Information
Born:
10 October 1959, Rochester, New York
Marital Status: Married to Patricia Lynn Morris Witmer
Children: Samuel H. Witmer, born 1993
Citizenship: United States of America
Optimus Prime spoke my name
(voice actor Peter Cullen narrated a National Geographic documentary on
which I appeared)
Education
1992
PhD, Cell Biology and Anatomy (Functional Anatomy and Evolution),
The Johns Hopkins University School of Medicine, Baltimore, Maryland.
Dissertation: Ontogeny, Phylogeny, and Air Sacs: The Importance of
Soft-tissue Inferences in the Interpretation of Facial Evolution in
Archosauria.
1987
MA, Systematics and Ecology (Evolutionary Biology and Vertebrate
Paleontology), The University of Kansas, Lawrence, Kansas.
Thesis: The Cranial Air Sac System of Mesozoic Birds.
1982
BA, Biology, Cornell University, Ithaca, New York.
Once played a guitar that had previously been played
by Eric Clapton
Present Status
Professor, Department of Biomedical Sciences,
Heritage College of Osteopathic Medicine, Ohio University (since July 2005; Associate Professor from
2001–2005; Assistant Professor from
1995–2001)
Chang Ying-Chien Endowed
Professorship of Paleontology 2007 – present
Ohio
University Presidential Research Scholar (Biomedical & Life Sciences)
2004–2009
Adjunct
Professor, Department of Geological Sciences, Ohio University
(since November 1998)
Billions
and billions of photons passed directly from Carl Sagan to my retina (I
used to see him walking around campus when I was a Cornell undergrad).
Other Professional Experience
2011 – present Member, Scientific Affairs Committee, American
Association of Anatomists
2009 – present Director of Anatomical Resources, Ohio
University Heritage College of Osteopathic Medicine
2008 – present Chair, Curriculum Advisory Committee, Ohio
University Heritage College of Osteopathic Medicine, member since
2008, chair since 2011
2007 – present President, International Society of Vertebrate
Morphology (President-Elect 2007–2010, President 2010–2013,
Past-President 2013–2016
2006 –
present Director, Ohio University MicroCT Scanning Facility
(OUµCT)
2006 –
present Member, Ohio University Council on Research,
Scholarship, and Creative Activity
2006 –
present Member, Ohio Center for Ecology and Evolutionary Studies
Advisory Committee
2004 – 2011
Basic Science Liaison,
Otorhinolaryngology-Head & Neck Surgery Residency Program Advisory
Committee, Ohio University Heritage College of Osteopathic Medicine
2002 – present
Society of Vertebrate Paleontology Lanzendorf Paleoart Prize Committee,
Member since 2002, Chair 2004–2006, 2008–2010
2001
– 2005 Research and Scholarly Affairs Committee, Ohio University
Heritage College of Osteopathic Medicine
2001
– 2003
Advisory Committee, Department of Biomedical Sciences,
Ohio University Heritage College of Osteopathic Medicine
1999 – 2004
Basic Science Liaison, Pediatrics Residency Program Advisory
Committee, Ohio University Heritage College of Osteopathic Medicine
1999 –
2001 Director, Ecology and Evolutionary Biology Focus Group, Ohio
University
1997
– present Basic
Science Liaison, General Surgery Residency Program Advisory Committee,
Ohio University Heritage College of Osteopathic Medicine
1995
– present Coordinator of PCC Gross
Anatomical Instruction,
Ohio University Heritage College of Osteopathic Medicine
1995
– present Member, PCC
Steering Committee, Ohio University Heritage College of Osteopathic
Medicine
1995
– present Member, Board of Editors, Ohio
Research and Clinical Review, Heritage College of Osteopathic Medicine
1995
– 2001 Member, Ecology and Evolutionary Biology
Graduate Steering Committee, College of Arts and Sciences
1994
– present Member and Chair (1994–1998) Society of Vertebrate Paleontology
Honorary Membership Committee
1994
– 1995 Course Director: Human Gross Anatomy and Embryology, New York College of Osteopathic Medicine
1992 – 1995 Assistant Professor, Department of Anatomy, New York College
of Osteopathic Medicine, Old Westbury, New York
Saw Star Wars in the theater on opening day, May 25, 1977
Completed Students Advised & Theses
(*
indicates Witmer was main advisor, otherwise Witmer was committee
member)
2012
*Joseph C. Daniel (Ohio University)—PhD: "Heads and skulls as
sediment sorters: an actualistic, CT-based study in taphonomy."
Current status: Gross anatomy instructor, Department of Neurobiology
and Developmental Sciences, University of Arkansas for Medical
Sciences.
2011
Eric Snively (Ohio University)—MSc: “Rigid body mechanics of prey
capture in large carnivorous dinosaurs.” Current status:
Postdoctoral researcher, WitmerLab at Ohio University
2011
Jeri C. Rodgers (University of Texas at Austin)—PhD: “Comparative
morphology of the vestibular semicircular canals in therian
mammals.” Current status: Research Assistant, Vertebrate
Paleontology Laboratory, University of Texas at Austin
2011 *David L.
Dufeau (Ohio University)—PhD: “The evolution of cranial pneumaticity
in Archosauria: patterns of paratympanic sinus development.” Current
status: Gross anatomy instructor, Department of Pathology and
Anatomical Sciences, University of Missouri
2010 *Amy R.
Martiny (Ohio University)—MA (Sociology): “Death Etiquette: medical
student socialization during their first cadaver interaction and the
impact of death anxiety.”
2009
*Tobin L. Hieronymus (Ohio University)—PhD: “Osteological correlates
of cephalic skin structures in Amniota: documenting the evolution of
display and feeding structures with fossil data.” Current status:
Assistant Professor at NEOUCOM.
2008 *Takanobu Tsuihiji (Ohio University)—Postdoctoral Fellow
(Japan Society for the Promotion of Science): “Anatomical evolution
at the cranio-cervical interface in Archosauromorpha (Reptilia,
Diapsida), with an emphasis on Dinosauria.” Current status: National
Museum of Nature and Science, Tokyo.
2007 *Justin
Tickhill (Ohio University)—MS: “The Virtual Pig Head: digital
imaging of cephalic anatomy.” Current status: Community college
teacher, Phoenix, Arizona.
2006
*Casey M. Holliday (Ohio University)—PhD: “Evolution and function of
the jaw musculature and adductor chamber of archosaurs
(crocodilians, dinosaurs, and birds).” Current status:
Assistant Professor, Department of Pathology and Anatomical
Sciences, University of Missouri
2004
Andrew Lammers (Ohio University)—PhD: “The biodynamics of arboreal
locomotion in the gray short-tailed opossum (Monodelphis
domestica).” Current status: Associate Professor, Cleveland
State University.
2003
*Andrew B. Clifford (Ohio University)—MS: “Narial novelty in
mammals: case studies and rules of construction” Witmer lab
2001–2003. Current status: Brown University, PhD student.
2003
Phil Senter (Northern Illinois University)—PhD: “Taxon sampling
artifacts and the phylogenetic position of Aves.” Current status:
Assistant Professor, Lamar State College-Orange, Texas
2003
Richard Essner (Ohio University)—PhD: “Locomotion, morphology, and
habitat use in arboreal squirrels (Rodentia: Sciuridae)” Current
status: University of Pennsylvania,
Assistant Professor, Southern Illinois University.
2003
Peter M. Larson (Ohio University)—PhD: “Chondrocranial evolution in
Rana tadpoles: integrating form, function, ontogeny, and phylogeny”
Current status: Assistant Professor, St. Anselm College, NH.
2003
Patrick M. O’Connor (SUNY Stony Brook): “Pulmonary pneumaticity in
extant birds and fossil archosaurs” Witmer lab 2000–2002.
Current status: Associate Professor, Ohio University Heritage
College of Osteopathic Medicine
2002
*Jayc C. Sedlmayr (Ohio University)—PhD: “Anatomy, evolution, and
functional significance of cephalic vasculature in Archosauria.”
Witmer lab 1997–2002. Current status:
Assistant Professor, Dept. of Cell Biology & Anatomy, LSU School of
Medicine, New Orleans
2001 Ruxandra Marinescu (Ohio University)—MS: “Comparison of
image generation and processing techniques for 3D reconstruction of
the human skull.” Current status: University of Florida PhD student.
2001
Jeffrey S. Willey (Ohio University)—MS: “Mechanics of the semi-erect
posture: Limb function and whole body mechanics in Alligator
mississippiensis.” Current status: Clemson University, PhD
student.
2001
Elicia N. Thompson (Ohio University)—MS: “A morphometrics and
kinetic analysis of the development of the feeding apparatus of
Monodelphis domestica.” Current status: dentistry student,
University of Washington
2000
*Andrew B. Clifford (Ohio University)—BS Honors: “The narial anatomy
of hooded seal (Cystophora cristata) with respect to other
Carnivora.” Witmer lab 1999–2000. Current status: Brown University,
PhD student.
2000
*Michael J. Papp (Ohio University)—MS: “A critical appraisal of
buccal soft-tissue anatomy in ornithischian dinosaurs.” Witmer lab
1996–2000. Current status: Associate Geologist at Parsons
Engineering Science in Cincinnati, Ohio.
Current WitmerLab Students and Staff
• Ryan Ridgely, Research Associate and chief Witmer collaborator.
2000 – present.
• Eric Snively, Postdoctoral researcher. 2010 – present.
“Musculoskeletal dynamics of feeding in the carnivorous dinosaurs.”
• William Porter, Doctoral student. 2008 – present. “Physiological
and behavioral implications of archosaur vascular systems.” Status:
ABD.
• Jason Bourke, Doctoral student. 2009 – present. “Nasal cavity
shape in dinosaurs and their relatives and its impact on inferences
of airflow and physiology based on a novel computational technique.”
Status: NSF Graduate Research Fellow; ABD
• Ashley Morhardt, Doctoral student. 2010 – present. “Brain
evolution in archosaurs (tentative).” Status:
Passed qualifying exams
• Donald Cerio,
Doctoral student. 2012 – present. TBA
• Cheyenne Romick, Undergraduate student. 2011 – present. “Studying
the growth of the brain and inner ear of the ostrich using CT
scanning and 3D analysis”
Professional Society Memberships
|
American
Ornithologists’ Union
Palaeontological
Association
Sigma
Xi
Society
of Avian Paleontology & Evolution
|
Society of Systematic
Biologists
Society
of Vertebrate Paleontology
International
Society of Vertebrate Morphology
Society of Integrative and Comparative Biology
|
Competitive Grants and Awards
2011 National Science Foundation: “Toward the Visible Dinosaur:
Integrating anatomical systems to test inferences of function,
physiology, and behavior, with special emphasis on broader impacts
and outreach” with R. C. Ridgley (Witmer senior PI). 2011–2014.
$350,500.00.
2009
National Science Foundation: “Extension for Special Creativity: Brain evolution in archosaurs: new
implications for scaling, function and the evolution of the modern
conditions in birds and crocodilians” with R. C.
Ridgley (Witmer senior PI). $180,000.00.
2009 Ministry
of Education and Science, Spain: “Using 3D technologies to
investigate the palaeoneurology of sauropod dinosaurs” with F. Knoll
(PI) and D. Schwarz-Wings. Witmer is a Project Collaborator. 75,000
€
2007 National
Environment Research Council, UK (NERC): “Correlations between form,
function and behaviour: the inner ears of birds and reptiles” with
P. Barrett and A. Milner (London PIs), and G. Manley (Munich Project
Partner). Witmer is Project Partner. £58,604.00.
2007 National
Geographic Society: “Skull biomechanics of the first modern
crocodilian, Isisfordia duncani” with S. Salisbury
(Queensland, Australia, PI), E. Rayfield and S. Pierce (UK). Witmer
is Project Personnel (as are all participants). $6950.00.
2005
National Science Foundation: “Brain evolution in archosaurs: new
implications for scaling, function and the evolution of the modern
conditions in birds and crocodilians” with G. R. Hurlburt and R. C.
Ridgley (Witmer senior PI). $171,262.00.
2004
National Science Foundation: “The ear regions of
archosaurs: the transition to the modern avian and crocodilian
conditions and functional implications for hearing and balance in
dinosaurs.” $280,293.00.
2004
National Science Foundation: “Evolution of the jaw musculature of
archosaurs.” Dissertation Improvement Grant for Casey M. Holliday,
$11,028.00.
2003
Ohio
University Baker Award: “Unusual nasal structures in dinosaurs and
other vertebrates.” $11,719.00
2000 National Science Foundation: “Anatomy, evolution, and
functional significance of cephalic vasculature in Archosauria, with
special emphasis on birds, crocodilians, and nonavian dinosaurs.”
Dissertation Improvement Grant for Jayc C. Sedlmayr, $9980.00
1997
The
Dinosaur Society: for supplementary publication costs of a Memoir of the Society of Vertebrate Paleontology, $980.40
1996
National
Science Foundation: “Unusual narial structures in dinosaurs and other
vertebrates: a case study in the functional interpretation of anatomical
novelty in the fossil record” with Scott D. Sampson, PhD, $180,000.00
1995
The
Dinosaur Society: “New insight into Deinonychus,
Tenontosaurus, and other
dinosaurs from the Cloverly Formation (Lower Cretaceous) of south-central
Montana” with W. Desmond Maxwell, PhD, $7225.00
1994
The Dinosaur Society: for publication costs of a Memoir
of the Society of Vertebrate Paleontology, $8400.00
1991
National Science Foundation Dissertation Improvement Grant (NSF BSR
9112070): “The evolution of the skull and air sinuses in Archosauria”,
$9885.00
1991
Grant-In-Aid of Research from Sigma Xi: “Evolution of the skull
and air sinuses in crocodylians and other archosaurs: New evidence from
Papua New Guinean crocodiles,” $545.00
1987-91Fellowship
from the Lucille P. Markey Charitable Trust, The Johns Hopkins University
School of Medicine.
1990
Alexander Wetmore Award from the American Ornithologists’ Union:
“Ontogeny, heterochrony, air sacs, and the evolution of the avian
skull,” $1210.00
Grant-In-Aid of Research from Sigma Xi: “Evolution of the skull
and air sinuses in crocodylians and other archosaurs,” $489.00
1989
Marcia Brady Tucker Award from the American Ornithologists’ Union for
travel to the 107th Stated Meeting of the American Ornithologists’
Union, Pittsburgh, Pennsylvania, August, $377.50
1985
Alexander Wetmore Award from the American Ornithologists’ Union: “The tympanicomandibular siphonial system: Implications for avian
origins and systematics,” $870.00
Published
papers
69.
Knoll, F., L. M. Witmer, F. Ortega, R. C. Ridgely, and D.
Schwarz-Wings. 2012. The braincase of the basal sauropod dinosaur
Spinophorosaurus and 3D reconstructions of the cranial endocast and
inner ear. PLoS ONE 7(1): e30060. doi:10.1371/journal.pone.0030060.
68.
Miyahsita, T., V. M. Arbour, L. M. Witmer, and P. J. Currie. 2011.
The internal cranial morphology of an armoured dinosaur
Euoplocephalus corroborated by X-ray computed tomographic
reconstruction. Journal of Anatomy 219:661–675.
•
Find out the back story on Witmer's blog post on Pick-and-Scalpel
67.
Dilkes, D. W., J. R. Hutchinson, C. M. Holliday, and L. M.
Witmer. In press. Reconstructing the musculature of dinosaurs.
In J. Farlow and M. Brett-Surman (eds.) The Complete Dinosaur,
2nd Edition. Indiana University Press, Bloomington. (81 MS pp.)
66.
Hurlburt, G. R., R. C. Ridgely, and L. M. Witmer. In press.
Relative size of brain and cerebrum in Tyrannosaurus rex: an
analysis using brain-endocast quantitative relationships in extant
alligators. in
Origin, Systematics, and Paleobiology of the Tyrannosauridae, J. M.
Parrish, M Henderson, P. J. Currie, E. Koppelhus (Eds.), Northern
Illinois University Press.
65.
Witmer, L. M.
2011. Palaeontology: Archaeopteryx: an icon knocked from its
perch. Nature 475:458–459.
64.
Tsuihiji, T., M. Watabe, K. Togtbaatar, T. Tsubamoto, R. Barsbold, S.
Suzuki, A. H. Lee, R. C. Ridgely, Y. Kawahara, and L. M. Witmer.
2011. Cranial osteology of a juvenile specimen of Tarbosaurus bataar
from the Nemegt Formation (Upper Cretaceous) of Bugin Tsav, Mongolia.
Journal of Vertebrate Paleontology 31:497–517.
• Visit the Project Page for a Common Language
Summary, PDF download of the article, and other
content
•
Find out the back story on Witmer's blog post on Pick-and-Scalpel
63.
Zelenitsky, D. K., F. Therrien,
R. C. Ridgely,
A. R. McGee, and L. M. Witmer. 2011. Evolution of olfaction in
non-avian theropod dinosaurs and birds. Proceedings of the Royal
Society B.
62.
Witmer, L. M.
and R. C. Ridgely. 2010. The Cleveland tyrannosaur skull (Nanotyrannus
or Tyrannosaurus): new findings based on CT scanning, with
special reference to the braincase. Kirtlandia 57:61–81.
61.
Holliday, C. M., R. C. Ridgely, J. C. Sedlmayr, and L. M. Witmer.
2010. Cartilaginous epiphyses in extant archosaurs and their
implications for reconstructing limb function in dinosaurs. PLoS ONE
5(9): e13120.
•
Download a PDF of the article with Supporting Information
•
Find out the back story on Witmer's blog post on Pick-and-Scalpel
•
Visit Casey Holliday's site at the University of Missouri for even more
resources
60.
Degrange, F. J., C. P. Tambussi, K. Moreno, L.
M. Witmer, and S. Wroe. 2010. Mechanical
analysis of feeding behavior in the extinct
"terror bird" Andalgalornis steulleti
(Gruiformes: Phorusrhacidae). PLoS ONE 5(8):
e11856. doi:10.1371/journal.pone.001185
•
Visit the Project Page for a Common Language
Summary, PDF download of the article, and other
content
•
Visit a page with Additional Resources, such as
news releases, images, movies, animations, and
more
•
Visit the WitmerLab Facebook page for a photo album
59.
Hieronymus, T. L., and
L. M. Witmer. 2010.
Homology and evolution of avian compound rhamphothecae. Auk 127:590–604.
58.
Witmer, L. M. 2009. Palaeontology: feathered dinosaurs in a tangle.
Nature 461:601–602.
57.
Holliday, C. M. and L. M. Witmer. 2009. The epipterygoid of
crocodyliforms and its significance for the evolution of the
orbitotemporal region of eusuchians. Journal of Vertebrate
Paleontology 29:715–733.
56.
Witmer, L. M.
and R. C. Ridgely. 2009. New insights into the brain,
braincase, and ear region of tyrannosaurs, with implications for
sensory organization and behavior. Anatomical Record
292:1266–1296.
55.
Evans, D., L. M. Witmer, and R. C. Ridgely.
2009.
Endocranial anatomy of lambeosaurine dinosaurs: a sensorineural
perspective on cranial crest function. Anatomical Record
292:1315–1337.
54.
Hieronymus, T. L., L. M. Witmer, D. H. Tanke, and P. J.
Currie. 2009. The facial integument of centrosaurine
ceratopsids: morphological and histological correlates of novel
skin structures. Anatomical Record 292:1370–1396.
53.
Witmer,
L. M.
2009. Dinosaurs: Fuzzy origins for feathers. Nature 458:293–295.
52.
Walsh,
S. A., P. M. Barrett, A. C. Milner, G. Manley, and L. M. Witmer.
2009. Inner ear anatomy is a proxy for deducing auditory capability
and behaviour in reptiles and birds. Proceedings of the Royal Society
B 276:1355–1360.
•
Additional information
and downloads on the WitmerLab site
51.
Holliday, C. M. and
L. M. Witmer. 2008. Cranial kinesis
in dinosaurs: intracranial joints, protractor muscles, and their
significance for cranial evolution and function in diapsids. Journal of Vertebrate Paleontology
28:1073–1088.
•
Additional information and downloads on the
Casey Holliday's site.
50.
Witmer, L. M., R. C. Ridgely, D. L. Dufeau, and M. C. Semones. 2008.
Using CT to peer into the past: 3D visualization of the brain and ear
regions of birds, crocodiles, and nonavian dinosaurs. Pp. 67–88 in
H. Endo and R. Frey (eds.), Anatomical Imaging: Towards a New
Morphology. Springer-Verlag, Tokyo.
49.
Witmer, L. M.,
and R. C. Ridgely. 2008. The paranasal air sinuses of predatory and
armored dinosaurs (Archosauria: Theropoda and Ankylosauria) and their
contribution to cephalic architecture. Anatomical Record 291:1362–1388.
•
Additional information
and downloads on the WitmerLab site
48.
Witmer, L. M., and R. C. Ridgely. 2008. Structure of the brain
cavity and inner ear of the centrosaurine ceratopsid
Pachyrhinosaurus based on CT scanning and 3D visualization.
Pp. 117–144 in P. J. Currie (ed.), A New Horned Dinosaur From an
Upper Cretaceous Bone Bed in Alberta. National Research Council
Research Press, Ottawa..
• Additional information and downloads on the WitmerLab site
47.
Sereno, P. C., J. A. Wilson, L. M. Witmer, J. A. Whitlock, A.
Maga, O. Ide, and T. A. Rowe. 2007. Structural extremes in a
Cretaceous dinosaur. PLoS ONE 2(11): e1230.
doi:10.1371/journal.pone.0001230.
•
PLoS Supplementary Information
• Additional information and
downloads on the WitmerLab site
•
Additional information and downloads on the Project Exploration site
•
Additional information and downloads on the DigiMorph site
46.
Sampson, S. D. and L. M. Witmer. 2007. Craniofacial anatomy
of Majungasaurus crenatissimus (Theropoda: Abelisauridae)
from the Late Cretaceous of Madagascar. Memoirs of the Society of
Vertebrate Paleontology 8, Journal of Vertebrate Paleontology
27(Supplement to 2):32–102.
• Additional information,
downloads, and 3D digital visualizations on the WitmerLab site
45
Holliday, C. M. and L. M. Witmer. 2007. Archosaur adductor
chamber evolution: integration of musculoskeletal and topological
criteria in jaw muscle homology. Journal of Morphology
268:457–484.
• Additional information and downloads on Casey Holliday's site
44.
Holliday, C. M., R. C. Ridgely, A. M. Balanoff, and L. M. Witmer*.
2006. Cephalic vascular anatomy in flamingos (Phoenicopterus
ruber) based on novel vascular injection and computed
tomographic imaging analyses. Anatomical Record
288A(10)1031–41.
•
Additional information and downloads on the WitmerLab site
43.
Hieronymus, T. L., R. C. Ridgely, and L. M. Witmer. 2006.
Structure of white rhinoceros (Ceratotherium simum) horn
investigated by x-ray computed tomography and histology with
implications for growth and external form. Journal of Morphology
267:1172–1176.
•
Additional information and downloads on the WitmerLab site.
42.
Clifford, A.
B. and L. M. Witmer. 2004. Case studies in novel narial
anatomy: 3. Structure and function of the nasal cavity of saiga (Artiodactyla:
Bovidae: Saiga tatarica). Journal of Zoology 264:217–230.
• Digital
Visualizations on DigiMorph.org
41.
Norman, D. B.,
L. M. Witmer,
and D. B. Weishampel.
2004. Basal Ornithischia. Pp. 325–334 in The Dinosauria, 2nd Edition, D.
B. Weishampel, P. Dodson, and H. Osmólska (Eds.), University of
California Press, Berkeley.
40.
Norman, D. B.,
L. M. Witmer, and
D. B. Weishampel. 2004. Basal Thyreophora. Pp. 335-342 in The Dinosauria, 2nd Edition, D.
B. Weishampel, P. Dodson, and H. Osmólska (Eds.), University of
California Press, Berkeley.
39.
Norman, D. B., H.-D. Sues, L. M. Witmer, and R. A. Coria.
2004. Basal Ornithopoda. Pp. 393–412 in The Dinosauria, 2nd Edition, D.
B. Weishampel, P. Dodson, and H. Osmólska (Eds.), University of
California Press, Berkeley.
38.
Witmer, L. M., R. C.
Ridgely, H. Mayle, D. Adams. 2004. The best of both worlds: integrating CT and MR in a study of
pig knees. RT Image 17(32):16–19.
•
RT Image web site
• Digital
Visualizations on DigiMorph.org
37.
Witmer, L.
M. 2004. Inside the oldest bird brain. Nature
430:619–620.
36.
Clifford, A. B. and L. M. Witmer.
2004. Case
studies in novel narial anatomy: 2. The enigmatic nose of moose (Artiodactyla:
Cervidae: Alces alces). Journal of Zoology 262:339–360.
•
Accompanying Nature "News & Views"
• Digital
visualizations on DigiMorph.org
35.
Witmer, L. M., S. Chatterjee,
J. Franzosa, and T. Rowe. 2003. Neuroanatomy of flying
reptiles and implications for flight, posture and behaviour. Nature
425:950–953.
•
Accompanying Nature "News & Views"
• Digital visualizations on DigiMorph.org:
Anhanguera,
Rhamphorhynchus
34.
You H.-L., Luo Z.-X.,N. H. Shubin,
L. M. Witmer, Tang A.-L, and Tang F. 2003. The earliest-known
duck-billed dinosaur from deposits of late Early Cretaceous age in
northwestern China and hadrosaur evolution. Cretaceous Research
24:346–355.
33.
Hill, R. V., L. M. Witmer,
M.A. Norell.
2003. A new specimen of Pinacosaurus grangeri
(Dinosauria: Ornithischia) from the Late Cretaceous of Mongolia:
ontogeny and phylogeny of ankylosaurs. American Museum
Novitates 3395:1–29.
32.
Bimber, O., S. M. Gatesy, L. M. Witmer, R. Raskar, and L. M.
Encarnação. 2002. Merging fossil specimens with computer-generated
information. IEEE Computer 35(9):25–30.
31.
Chiappe, L. M. and L. M.
Witmer.
2002. Preface. Pp. ix–xii in Mesozoic Birds: Above the Heads of
Dinosaurs, L. M. Chiappe and L. M. Witmer (eds.), University of
California Press, Berkeley.
30.
Witmer, L. M.
2002.
The debate on avian ancestry: phylogeny, function, and fossils. In
Mesozoic Birds: Above the Heads of Dinosaurs, L. M. Chiappe and L. M.
Witmer (eds.), University of California Press, Berkeley.
29.
Sedlmayr,
J. C. and L. M. Witmer. 2002. Rapid technique
for imaging the blood vascular system using stereoangiography. Anatomical
Record 267(4):330–336.
28.
Witmer, L. M.
2001. Nostril position
in dinosaurs and other vertebrates and its significance for nasal
function. Science 293:850–853.
27.
Witmer, L. M. 2001.
The role of Protoavis in the debate on avian origins.
pp. 537–548 In New Perspectives
on the Origin and Early Evolution of Birds, J. A. Gauthier and L. F. Gall
(eds.), Yale Peabody
Museum, New Haven.
26.
Witmer, L. M.
2000. Science,
art, and dinosaurs. Essay and review of Dinosaur Imagery: The Science
of Lost Worlds and Jurassic Art, edited by C. R. Crumly. Science
5489:460–461.
25.
Witmer, L. M. 1999.
New aspects of avian origins: roundtable report. pp. 327–334 in
Avian Paleontology at the Close of the 20th Century:
Proceedings of the 4th International Meeting of the Society of
Avian Paleontology and Evolution, S. L. Olson (ed.), Smithsonian
Contributions to Paleobiology 89, Washington.
24.
Witmer, L. M., S. D. Sampson, and N. Solounias. 1999. The proboscis of tapirs (Tapirus terrestris): a case study in novel narial anatomy. Journal
of Zoology 249:249–267.
23.
Solounias, N., J. M. Plavcan, J. Quade and L. M. Witmer. 1999.
The paleoecology of the Pikermian Biome and the savanna myth.
pp. 426-453. In
Hominoid Evolution and Climatic Change in Europe. Volume 1: The Evolution
of Neogene Terrestrial Ecosystems in Europe.
J. Agustí, L. Rook, and P. Andrews (eds.). Cambridge University Press, New York.
22.
Witmer, L. M. 1999. The phylogenetic history of paranasal air sinuses. pp.
21–34 in The Paranasal Sinuses
of Higher Primates: Development, Function and Evolution, T. Koppe, H.
Nagai, and K. W. Alt (eds.), Quintessence, Chicago.
21.
Sampson, S. D., L. M. Witmer, C. A. Forster, D. W. Krause, P. M.
O’Connor, P. Dodson, and F. Ravoavy.
1998. Predatory
dinosaur remains from Madagascar: implications for the Cretaceous
biogeography of Gondwana. Science 280:1048–1051.
20.
Witmer, L. M. 1998.
Dinosaurs for adults. Review
of The Complete Dinosaur by J. O. Farlow and M. K. Brett-Surman.
Science 280:223.
19.
Witmer, L. M. 1997. Craniofacial
air sinus systems. pp.
151–159 in The Encyclopedia of
Dinosaurs, P. J. Currie and K. Padian (eds.), Academic Press, New York.
18.
Witmer, L. M. 1997. Foreword.
pp. vii–xii in The Rise of Birds: 225 Million Years of Evolution, by S.
Chatterjee, Johns Hopkins University Press, Baltimore.
17.
Witmer, L. M. 1997.
Flying feathers. Review of The Origin
and Evolution of Birds by Alan Feduccia.
Science 276:1209–1210.
16.
Witmer, L. M. 1997.
A new missing link. Nature
387:349–350.
15.
Witmer, L. M. 1997.
The evolution of the antorbital cavity of archosaurs: a study in
soft-tissue reconstruction in the fossil record with an analysis of the
function of pneumaticity. Memoirs
of the Society of Vertebrate Paleontology, Journal of Vertebrate
Paleontology 17(Supplement to 1):1–73.
14.
Witmer, L. M. 1995.
Homology of facial structures in extant archosaurs (birds and
crocodilians), with special reference to paranasal pneumaticity and nasal
conchae. Journal
of Morphology 225:269–327.
13.
Witmer, L. M. 1995.
The Extant Phylogenetic Bracket and the importance of
reconstructing soft tissues in fossils. pp. 19–33 in
Functional Morphology in Vertebrate Paleontology, J. J. Thomason (ed.),
Cambridge Univ. Press, New York.
12.
Baumel, J. J. and Witmer, L. M. 1993.
Osteologia. pp. 45–132 in
Handbook of Avian Anatomy: Nomina Anatomica Avium, Second Edition, J. J.
Baumel (ed.), Publications of the Nuttall Ornithological Club No. 23,
Cambridge.
11.
Witmer, L. M. and Rose, K. D.
1991. Biomechanics of
the jaw apparatus of the gigantic Eocene bird Diatryma:
Implications for diet and mode of life. Paleobiology
17:95–120.
10. Witmer, L. M. 1991. Perspectives
on avian origins. pp. 427–466 in
Origins of the Higher Groups of Tetrapods: Controversy and Consensus,
H.-P. Schultze and L. Trueb (eds.), Cornell University Press, Ithaca.
9. Witmer, L. M. 1990. The
craniofacial air sac system of Mesozoic birds (Aves). Zoological
Journal of the Linnean Society. 100:327–378.
8.
Weishampel, D. B. and Witmer, L. M.
1990. Lesothosaurus,
Pisanosaurus, and Technosaurus. pp. 416–425 in
The Dinosauria, D. B. Weishampel, P. Dodson, and H. Osmólska (Eds.),
University of California Press, Berkeley.
7.
Weishampel, D. B. and Witmer, L. M.
1990. Heterodontosauridae.
pp. 486–497 in The Dinosauria,
D. B. Weishampel, P. Dodson, and H. Osmólska (Eds.), University of
California Press, Berkeley.
6.
Coombs, W. P., Weishampel, D. B., and Witmer, L. M.
1990. Basal Thyreophora. pp. 427–434 in
The Dinosauria, D. B. Weishampel, P. Dodson, and H. Osmólska (Eds.),
University of California Press, Berkeley.
5.
Witmer, L. M. 1989. Review:
Peter W. Houde: Paleognathous birds from the early Tertiary of the
Northern Hemisphere. Journal of
Vertebrate Paleontology 9(3):368–369.
4.
Bühler, P., Martin, L. D., and Witmer, L. M.
1988. Cranial kinesis in the Late Cretaceous birds Hesperornis and Parahesperornis.
Auk: Quarterly Journal of
Ornithology 105(1):111–122.
3.
Witmer, L. M. and Martin, L. D.
1987. The primitive
features of the avian palate with special reference to
Mesozoic birds. Documents des Laboratoires de Géologie, Lyon 99:21–40.
2.
Witmer, L. M. 1987. The nature
of the antorbital fossa of archosaurs: shifting the null hypothesis. pp.
230–235 in Fourth Symposium on
Mesozoic Terrestrial Ecosystems, Short Papers (P. J. Currie and E. H.
Koster, Eds.), Occasional Paper of the Tyrrell Museum of Palaeontology #3,
Drumheller, Alberta.
1. Witmer, L. M. 1979. Host
preference by the Mid-Devonian (Moscow Shale) epizoans Hederella
filiformis, Aulopora elleri,
Spirorbis sp., and Cornulites sp. Cornell
Journal of Biological Science 1979:21–28.
Web Sites Managed
• WitmerLab sites on OU servers:
http://www.ohio.edu/witmerlab
• WitmerLab YouTube Channel:
http://www.youtube.com/witmerlab
• WitmerLab “Pick and Scalpel” blog:
http://witmerlab.wordpress.com/
• WitmerLab Facebook page:
http://www.facebook.com/witmerlab
• Witmer’s personal
site:
http://www.oucom.ohiou.edu/dbms-witmer/
• Ohio University MicroCT Facility:
http://www.oucom.ohiou.edu/ou-microct/
• International Congress of Vertebrate Morphology Facebook page:
http://www.facebook.com/ICVM10
Books and Popular Articles
1.
Chiappe, L. M. and L. M. Witmer
(editors). 2002. Mesozoic Birds: Above the Heads of
Dinosaurs. University of California Press, Berkeley,
520 pp.
2.
Witmer, L. M. 2001. A nose for all reasons. Natural
History Magazine, June 2001 110(5):64–71.
3.
Maxwell W. D. and L. M. Witmer. 1996. The new Deinonychus. Dinosaur
Discoveries 2:1–2.
4.
Witmer, L. M. 1995.
The Search for the Origin of
Birds. Franklin Watts, New York.
NSF Digital Library Contributions ON dIGIMORPH
1.
Ridgely, R. C. and L. M. Witmer. 2007. Cranial endocast and
skull anatomy in the African sauropod dinosaur Nigersaurus.
2.
A. B.
Clifford and L. M. Witmer. 2004. Facial and narial anatomy
of saiga.
3.
Ridgely, R.
C. and L. M. Witmer. 2004. Knee anatomy in domestic pigs
based on CT/MR fusion.
4.
Holliday, C. M., R. C. Ridgely, and L. M. Witmer. 2004.
Head vasculature of the Caribbean flamingo.
5.
A. B.
Clifford and L. M. Witmer. 2004. Facial and narial anatomy
of moose.
6.
Witmer, L. M., S. Chatterjee, J. Franzosa, and T. Rowe.
2003. Neuroanatomy and inner ear of the pterosaur Anhanguera.
7.
Witmer, L. M., S. Chatterjee, J. Franzosa, and T. Rowe.
2003. Neuroanatomy and inner ear of the pterosaur
Rhamphorhycnhus.
Symposia Organized
2001. The Nasal Region
of Tetrapods (with W. Maier and Z. Rocek).
Sixth International Congress of Vertebrate Morphology, Jena
Germany, 24 July 2001.
1997.
Pneumatization of the Vertebrate Skull (with Thomas Koppe).
Fifth International Congress of Vertebrate Morphology, Bristol,
England, 17 July 1997.
Invited Lectures since 2003
2012
• PaleoFest 2012, Burpee Museum of Natural History, 3 Mar 2012. “The
Visible Dinosaur: integrating science, technology, and outreach.”
2011 • Keynote
address, Tri-Beta Biological Honor Society District Convention, 9
Apr 2011. “Digital dinosaurs: solving the riddles of dinosaur
biology using advanced 3D imaging.”
•
Rotary International, Athens Chapter, 7 Feb 2011. “The Visible
Dinosaur: Integrating science and outreach.”
2010 •
Integrative Anatomy Seminar, University of Missouri, 15 Nov 2010.
“Evolving an on-board flight computer: brains, ears, and the
evolution of birds, dinosaurs, and pterosaurs.”
•
Saturday Morning Science, University of Missouri, 13 Nov 2010.
"Dinosaurs exposed! Advanced 3D imaging sheds new light on their
lives"
•
Johns Hopkins University, 26 Feb 2010. “Digital dinosaurs: shedding
light on dinosaur sensory biology and behavior using advanced 3D
imaging.”
•
Yale University, 24 Feb 2010. “Digital dinosaurs: shedding light on
dinosaur sensory biology and behavior using advanced 3D imaging.”
2009 • Annual
Address, Palaeontological Association, University of Birmingham,
England, 14 Dec 2009. “Digital dinosaurs: Unlocking the riddles of
the past using advanced 3D imaging.”
•
Ohio University Science Café, 14 Oct 2009. “Fleshing out dinosaur
evolution.”
•
University of Cincinnati, 23 Apr 2009. “Evolving an on-board flight
computer: brains, ears, and the evolution of birds, dinosaurs, and
pterosaurs.”
2008 • Ohio
University Geology Colloquium, 19 Sep 2008. “Digital dinosaurs:
shedding light on dinosaur sensory biology and behavior using
advanced 3D imaging.”
•
University of California, Davis. 30 Apr 2008. “Digital dinosaurs:
shedding light on dinosaur sensory biology and behavior using
advanced 3D imaging.”
•
Dinosaur Lecture Series, Carnegie Museum of Natural History,
Pittsburgh. 12 Apr 2008. “Dinosaurs exposed: unlocking the riddles
of Carnegie’s dinosaurs using advanced medical imaging.”
•
Frontiers in Science Lecture, Florida Atlantic University, Boca
Raton. 27 Mar 2008. “Digital dinosaurs: solving the riddles of
dinosaurs using advanced medical imaging.”
2007
• Ohio University, BMIT/DRI/EBI Joint Retreat. 10 Dec 2007. “OUµCT:
The Ohio University MicroCT scanner as a tool for visualization and
quantitative analysis of small subjects.”
•
Georgia College and State University, Milledgeville. 12 Nov 2007.
“Evolving an on-board flight computer: brains, ears, and the
evolution of birds, dinosaurs, and pterosaurs”
2006
• Explorer Lecture, Cleveland Museum of Natural History. 08 Dec 2006.
“Tyrannosaurus Exposed: Getting into the Head of a Killer.”
• Museum of the Rockies, Montana State University,
Bozeman. 16 Nov 2006. “Digital Dinosaurs: Unlocking the Riddles of
Dinosaur Skulls Using Advanced Medical Imaging.”
• Symposium on New Approaches to Paleontological
Investigation at the American Association for the Advancement of
Science Annual Meeting, 17 Feb 2006. “Fleshing Out Dinosaurs:
Implications of Brain, Ear, and Nose Structure.”
2005
• Symposium on the Origin, Systematics, and Paleobiology of the
Tyrannosauridae, Burpee Museum of Natural History and Northern
Illinois University, Rockford, IL. 16 Sep 2005. “New insights into
the brain and ear region of tyrannosaurs, with implications for
sensory organization and behavior.”
•
Evolutionary Morphology Seminar Series, Dept. of Organismal
Biology and Anatomy, University of Chicago, Chicago, IL. 14 Apr
2005. “Fleshing Out Dinosaurs: Bridging the Present and Past to
Redefine Paleontology.”
2004
•
Earth History and Paleobiology Seminar Series, Harvard University,
Cambridge, MA. 16 Nov 2004. “What is Paleontology? Linking the
Present to the Past to Flesh Out Fossils.”
•
Symposium on Feathered Dinosaurs and the Origin of Flight, San
Diego Natural History Museum, San Diego, CA. 13 Sep 2004. “Dinosaurs
Take Wing: The Search for the Origin of Birds.”
•
Seventh International Congress of
Vertebrate Morphology, Boca Raton, FL. 01 Aug 2004. “Fleshing
Out Fossils: The Present as the Key to a Very Different Past.”
(plenary keynote address)
•
Neuroscience Seminar Series, Ohio University, Athens, OH. 27
Feb 2004. “Paleoneuroanatomy and the Inference of Neural and
Vestibular Structures in Dinosaurs and Pterodactyls.”
•
Annual Robert T. Dorsey Lecture, Cleveland Museum of Natural
History, Cleveland, OH. 09 Feb 2004. “Dinosaurs Take Wing: The
Origin and Early Radiation of Birds.”
2003
•
President’s Research Showcase, Ohio University, Athens, OH. 15 Nov
2003. “diNOSE: Putting Dinosaur Noses in Their Place.”
•
Sigma-Xi Annual Banquet, Ohio University, Athens, OH. 14 May
2003. “Fleshing Out Dinosaurs: The Present as the Key to a Very
Different Past.”
•
High-Resolution X-ray CT Facility, University of Texas,
Austin, TX. 27 Mar 2003. “Anatomical approaches in the Witmer Lab.”
•
Clara Jones Langston Centennial Lecture, University of Texas,
Austin, TX. 26 Mar 2003. “Fleshing Out Dinosaurs: The Role of Extant
Taxa in Assessing Anatomical Novelty in the Fossil Record.”
Papers Presented at Professional Society Meetings
2012
Porter, W. P., and L. M. Witmer. 2012. Vascular patterns in
iguanas: blood vessels and cephalic sites of thermal exchange.
Annual Meeting of the Society of Integrative and Comparative
Biology, Charleston, South Carolina.
Morhardt, A. C., R. C. Ridgely, and L. M. Witmer. 2012. Gross
Anatomical Brain Region Approximation (GABRA): a new technique for
assessing brain size and structure in extinct archosaurs. Annual
Meeting of the Society of Integrative and Comparative Biology,
Charleston, South Carolina.
Bourke, J. M., and L. M. Witmer. 2012. Baffling bird noses:
Modeling the effects of turbinate structure on airflow dynamics in
ostriches and turkeys. Annual Meeting of the Society of Integrative
and Comparative Biology, Charleston, South Carolina.
2011
Zelenitsky, D. K., F. Therrien, R. C. Ridgely, A. R. McGee, and
L. M. Witmer. 2011. Importance of olfaction during theropod
evolution. 71st Annual Meeting of the Society of Vertebrate
Paleontology, Las Vegas, NV. Society of Vertebrate
Paleontology—Program and Abstracts: 219.
Sues, H.-D., L. M. Witmer, and A. Averianov. 2011.
Titanosauria (Sauropoda) from the Upper Cretaceous (Turonian)
Bissekty Formation of Uzbekistan. 71st Annual Meeting of the Society
of Vertebrate Paleontology, Las Vegas, NV. Society of Vertebrate
Paleontology—Program and Abstracts: 201.
Porter, W. P., and L. M. Witmer. 2011. Vascular anatomy and
its physiological implications in extant and extinct dinosaurs and
other diapsids. 71st Annual Meeting of the Society of Vertebrate
Paleontology, Las Vegas, NV. Society of Vertebrate
Paleontology—Program and Abstracts: 176.
Porro, L., P. M. Barrett, and L. M. Witmer. 2011. A 3D skull
of Lesothosaurus diagnosticus: digital preparation,
reconstruction and feeding mechanics. 71st Annual Meeting of the
Society of Vertebrate Paleontology, Las Vegas, NV. Society of
Vertebrate Paleontology—Program and Abstracts: 176.
Morhardt, A. C., R. C. Ridgely, and L. M. Witmer. 2011. New
studies of brain and inner ear structure in Stegosaurus (Dinosauria:
Ornithischia) based on CT scanning and 3D visualization. 71st Annual
Meeting of the Society of Vertebrate Paleontology, Las Vegas, NV.
Society of Vertebrate Paleontology—Program and Abstracts: 162.
Lautenschlager, S., E. J. Rayfield, L. M. Witmer, and Perle
A. 2011. The endocranial anatomy of the Mongolian therizinosauroid
dinosaur Erlikosaurus andrewsi as revealed by 3D
visualization. 71st Annual Meeting of the Society of Vertebrate
Paleontology, Las Vegas, NV. Society of Vertebrate
Paleontology—Program and Abstracts: 141.
Knoll, F., L. M. Witmer, F. Ortega, R. C. Ridgely, and D.
Schwarz-Wings. 2011. The braincase of the basal sauropod dinosaur
Spinophorosaurus and a CT-based analysis of the brain and otic
regions. 71st Annual Meeting of the Society of Vertebrate
Paleontology, Las Vegas, NV. Society of Vertebrate
Paleontology—Program and Abstracts: 137–138.
Bourke, J. M., and L. M. Witmer. 2011. Computer modeling of
nasal airflow in two extant avian dinosaurs (turkey and ostrich),
with implications for modeling airflow in extinct theropods. 71st
Annual Meeting of the Society of Vertebrate Paleontology, Las Vegas,
NV. Society of Vertebrate Paleontology—Program and Abstracts: 75.
Evans, D. C., P. J. Currie, L. M. Witmer, and J. R. Horner.
2011. A new low-crested lambeosaurine hadrosaurid from the Dinosaur
Park Formation of Sandy Point, eastern Alberta. 2011 International
Hadrosaur Symposium, Royal Tyrrell Museum of Palaeontology,
Drumheller, Alberta.
Barrett, P. M., G. W. Storrs, M. T. Young, and L. M. Witmer.
2011. A new skull of Apatosaurus and its taxonomic and
palaeobiological implications. Annual Symposium of Vertebrate
Palaeontology and Comparative Anatomy, Lyme Regis, UK.
Snively, E., J. R. Cotton, L. M. Witmer, and R. C. Ridgley.
2011. Finite element comparison of cranial sinus function in the
dinosaur Majungasaurus and head-clubbing giraffes.
Proceedings of the ASME 2011 Summer Bioengineering Conference,
Farmington, Pennsylvania.
Morhardt, A. C., R. C. Ridgely, and L. M. Witmer. 2011. A
brain the size of a walnut: new studies of brain and inner ear
structure in Stegosaurus (Dinosauria: Ornithischia) based on
CT scanning and 3D visualization. Geological Society of America
Northeastern and North-Central Joint Meeting, Pittsburgh,
Pennsylvania.
Bourke, J. M., and L. M. Witmer. 2011. Breathing life back
into dinosaurs: computer modeling of nasal airflow in dinosaurs and
their extant relatives. Geological Society of America Northeastern
and North-Central Joint Meeting, Pittsburgh, Pennsylvania.
Porter, W. P., and L. M. Witmer. 2011. Vascular anatomy and
physiological implications in extant and extinct theropod dinosaurs.
Geological Society of America Northeastern and North-Central Joint
Meeting, Pittsburgh, Pennsylvania.
Bourke, J. M., and L. M. Witmer. 2011. The nose knows:
modeling airflow in alligators and dinosaurs.
Annual Meeting of the Society of
Integrative and Comparative Biology, Salt Lake City, Utah.
Porter, W. P., and L. M. Witmer. 2011. Vascular patterns in
galliform birds: regions of thermal exchange.
Annual Meeting of the Society of
Integrative and Comparative Biology, Salt Lake City, Utah.
2010 Martiny,
A. R., R. C. Ridgely, D. L. Dufeau, W. R. Porter, J. M. Bourke, A.
C. Morhardt, E. D. Snively, and L. M. Witmer. 2010. Promoting
a culture of outreach within an active university research lab
setting: WitmerLab at Ohio University. 70th Annual
Meeting of the Society of Vertebrate Paleontology, Pittsburgh, PA.
Witmer, L. M., R. C. Ridgely, H. F. James, S. L. Olson, and A.
N. Iwaniuk. 2010. Neuroanatomy, skull morphology and their
behavioral implications for the remarkable, recently extinct
“platypus-duck” Talpanas lippa (Aves: Anseriformes) from
Kauai, Hawaii. 70th Annual Meeting of the Society of
Vertebrate Paleontology, Pittsburgh, PA. Society of Vertebrate
Paleontology —Program and Abstracts: 188A.
Snively, E. D., L. M. Witmer, R. C. Ridgely, S. Wroe, and M.
Ryan. 2010. Impact and scythe-like jaw function in large cretaceous
theropods: Majungasaurus, Tyrannosaurus and
Giganotosaurus compared. 70th Annual Meeting of the
Society of Vertebrate Paleontology, Pittsburgh, PA. Society of
Vertebrate Paleontology —Program and Abstracts: 168A.
Ridgley, R. C., L. M. Witmer, H. F. James, S. L. Olson, and
A. N. Iwaniuk. 2010. Whatever fits the bill: novel digital
techniques for reconstructing skull and eyeball anatomy in the
unusual extinct Hawaiian duck, Talpanas lippa. 70th
Annual Meeting of the Society of Vertebrate Paleontology,
Pittsburgh, PA. Society of Vertebrate Paleontology
—Program and Abstracts: 150A.
Porter, W. P., and L. M. Witmer. 2010. Vasculature and
dinosaur physiology: vascular patterns in extant diapsids. 70th
Annual Meeting of the Society of Vertebrate Paleontology,
Pittsburgh, PA. Society of Vertebrate Paleontology
—Program and Abstracts: 147A.
Dufeau, D. L., and L. M. Witmer. 2010. Opportunism, acoustics
and mass: exaptation and patterns of middle-ear expansion in
Archosauria. 70th Annual Meeting of the Society of
Vertebrate Paleontology, Pittsburgh, PA. Society of Vertebrate
Paleontology —Program and Abstracts: 83A.
Bourke, J. M., and L. M. Witmer. 2010. The nose knows: the
effects of nasal cavity anatomy on airflow in alligators. 70th
Annual Meeting of the Society of Vertebrate Paleontology,
Pittsburgh, PA. Society of Vertebrate Paleontology
—Program and Abstracts: 63A.
Witmer, L. M., R. C. Ridgely, E. D. Snively, C. M. Holliday, T.
L. Hieronymus, D. L. Dufeau, W. P. Porter, J. M. Bourke, and A. R.
Martiny. 2010. Toward the Visible Dinosaur: integrating anatomical
systems to test inferences of function, physiology and behavior. 9th
International Congress of Vertebrate Morphology, Punta del Este,
Uruguay.
Dufeau, D. L., and L. M. Witmer. 2010. Anatomical boundaries
of the middle-ear space of archosaurs—phylogenetic patterns and
implications for auditory function. 9th International Congress of
Vertebrate Morphology, Punta del Este, Uruguay.
Holliday, C. M., and L. M. Witmer. 2010. The epipterygoid of
crocodyliforms and its significance for the evolution of the
orbitotemporal region of eusuchians. 9th International Congress of
Vertebrate Morphology, Punta del Este, Uruguay.
James, H. F., A. N. Iwaniuk, L. M. Witmer, M. D. Spitzer, R.
C. Ridgley, and S. L. Olson. 2010. Talpanas lippa, a new
fossil genus of waterfowl from Kauai with neurological similarities
to platypus and kiwi. 9th International Congress of Vertebrate
Morphology, Punta del Este, Uruguay.
James, H. F., A. N. Iwaniuk, L. M. Witmer, M. D. Spitzer, R.
C. Ridgley, and S. L. Olson. 2010. Comparative osteology of
Talpanas lippa, a new fossil species of waterfowl from Kaua`i
with neurological similarities to platypus and kiwi. Joint Meeting
of Cooper Ornithological Society, American Ornithologists’ Union,
and Society of Canadian Ornithologists, San Diego, CA.
Porter, W. P., and L. M. Witmer. 2010. Vasculature and
dinosaur physiology: patterns in the extant realm.
Annual Meeting of the Society of Integrative and Comparative
Biology, Seattle, WA.
Dufeau, D. L., and L. M. Witmer. 2010. Acoustic resonance of
the middle ear in Alligator—implications for behavioral
correlations.
Annual Meeting of the Society of Integrative and Comparative
Biology, Seattle, WA.
2009
Witmer, L. M. 2009. Digital dinosaurs: Unlocking the riddles of
the past using advanced 3D imaging. Annual Address at the Annual
Meeting of the Palaeontological Association, University of
Birmingham, UK.
Young, M., E. Rayfield, C. M. Holliday, P. Barrett, and L. M.
Witmer. 2009. Testing hypotheses of feeding behavior in
Diplodocus longus using the finite-element method. 69th
Annual Meeting of the Society of Vertebrate Paleontology, Bristol,
UK. Journal of Vertebrate Paleontology 29(Supplement to
3):205A.
Dufeau, D., and L. M. Witmer. 2009. Anatomical
boundaries of the middle-ear space of archosaurs. Phylogenetic
patterns and implications for auditory function. 69th
Annual Meeting of the Society of Vertebrate Paleontology, Bristol,
UK. Journal of Vertebrate Paleontology 29(Supplement to
3):90A.
Daniel, J., and L. M. Witmer. 2009. Interpretations of
sediment patterns in fossils based on an actualistic, taphonomic
study of ostrich heads during and post-burial. 69th
Annual Meeting of the Society of Vertebrate Paleontology, Bristol,
UK. Journal of Vertebrate Paleontology 29(Supplement to
3):85A.
Hieronymus, T. L., and L. M. Witmer. 2009. Evolution of avian
compound rhamphothecae: homology of simple and compound horny beaks
in birds.
Annual Meeting of the Society of Integrative and Comparative
Biology, Boston, MA.
2008
Witmer, L. M., and R. C. Ridgely. 2008. Air spaces within the
heads of dinosaurs and their contribution to cephalic structure. 68th
Annual Meeting of the Society of VertebratePaleontology, Cleveland,
OH. Journal of Vertebrate Paleontology 28(Supplement to
3):161A.
Daniel, J. C., and L. M. Witmer. 2008. What can sediment
patterns tell us about soft tissue?: an actualistic taphonomic study
of ostrich heads during and pos-burial. 68th Annual
Meeting of the Society of Vertebrate Paleontology, Cleveland, OH.
Journal of Vertebrate Paleontology 28(Supplement to 3):69A.
Evans, D., L. M. Witmer, R. C. Ridgely, and J. R. Horner.
2008. Endocranial anatomy of lambeosaurine dinosaurs: implications
for cranial crest function and evolution. 68th Annual
Meeting of the Society of Vertebrate Paleontology, Cleveland, OH.
Journal of Vertebrate Paleontology 28(Supplement to 3):75A.
Dufeau, D. L., and L. M. Witmer. 2008. Morphological patterns
and phylogenetic trends in theropod braincase pneumaticity. 68th
Annual Meeting of the Society of Vertebrate Paleontology, Cleveland,
OH. Journal of Vertebrate Paleontology 28(Supplement to
3):73A.
Tsuihiji, T., L. M. Witmer, M. Watabe, R. Barsbold, and K.
Tsogtbaatar. 2008. New information on the cranial anatomy of
Avimimus portentosus (Dinosauria: Theropoda) including virtual
endocasts of the brain and inner ear. 68th Annual Meeting
of the Society of Vertebrate Paleontology, Cleveland, OH. Journal
of Vertebrate Paleontology 28(Supplement to 3):153A.
Ridgely, R. C., and L. M. Witmer. 2008. Gross Anatomical
Brain Region Approximation (GABRA): a new technique for assessing
brain structure in dinosaurs and other fossil archosaurs. 68th
Annual Meeting of the Society of Vertebrate Paleontology, Cleveland,
OH. Journal of Vertebrate Paleontology 28(Supplement to
3):131A.
Walsh, S. A, A. C. Milner, P. M. Barrett, G. Manley, and L. M.
Witmer. 2008. Can hearing and vocalization capacities be
estimated from cochlear duct endocasts? 68th Annual
Meeting of the Society of Vertebrate Paleontology, Cleveland, OH.
Journal of Vertebrate Paleontology 28(Supplement to 3):157A.
Smith, D., D. L. Dufeau, R. K. Sanders, R. C. Ridgely, and L. M.
Witmer. 2008. The cranial endocast of Eutretauranosuchus
delfsi (Crocodyliformes, Goniopholididae) and its relationship
to other cephalic spaces. 68th Annual Meeting of the
Society of Vertebrate Paleontology, Cleveland, OH. Journal of
Vertebrate Paleontology 28(Supplement to 3):144A.
Degrange, F., K. Moreno, S. Wroe, C. Tambussi, and L. M. Witmer.
2008. A computational biomechanical approach to the reconstruction
of predatory behavior in the terror bird Andalgalornis steulleti.
68th Annual Meeting of the Society of Vertebrate
Paleontology, Cleveland, OH. Journal of Vertebrate Paleontology
28(Supplement to 3):71A.
Hieronymus, T.
L., and L. M. Witmer. 2008. The facial skin of
Majungasaurus crenatissimus (Abelisauridae: Saurischia):
pronounced dermal metaplasia as the cause of rugosity in abelisaurid
skulls. 68th Annual Meeting of the Society of Vertebrate
Paleontology, Cleveland, OH. Journal of Vertebrate Paleontology
28(Supplement to 3):90A.
Iwaniuk, A. N, H.
F. James, S. L. Olson, D. R. W. Wylie, R. C. Ridgely, and L. M.
Witmer. 2008. Evidence of extreme somatosensory specialization
in an extinct duck. Program No. 79.13. 2008 Neuroscience Meeting
Planner. Washington, DC: Society for Neuroscience, 2008.
Degrange, F. J., C. P. Tambussi, K. Moreno, S. Wroe, and L. M.
Witmer. 2008. Andalgalornis steulleti (Aves,
Phorusrhacidae): respuesta biomecánica del cráneo ante acción de
fuerzas extrínsecas. III Latin American Congress of Vertebrate
Paleontology, Neuquén, Argentina.
2007 Young, M. T., E. J. Rayfield, P. M. Barrett, P. Upchurch, and
L. M. Witmer. 2007. Elucidating the feeding mechanics of
Diplodocus longus using the Finite-element method. 51st
Annual Meeting of the Palaeontological Association, Uppsala, Sweden.
Palaeontological Association Newsletter 66:101.
Daniel, J. and L. M. Witmer. 2007. The role of soft tissues
in sediment infilling and patterning: an actualistic study with
ostrich heads. 67th Annual Meeting of the Society of
Vertebrate Paleontology, Austin, TX. Journal of Vertebrate
Paleontology 27(Supplement to 3):65A.
Dufeau, D. L. and L. M. Witmer. 2007. Ontogeny and phylogeny
of the tympanic pneumatic system of crocodyliform archosaurs. 67th
Annual Meeting of the Society of Vertebrate Paleontology, Austin,
TX. Journal of Vertebrate Paleontology 27(Supplement to
3):70A.
Hieronymus, T. L. and L. M. Witmer. 2007. Skinning dinosaurs:
bony correlates and patterns of cephalic skin evolution in
Archosauria. 67th Annual Meeting of the Society of
Vertebrate Paleontology, Austin, TX. Journal of Vertebrate
Paleontology 27(Supplement to 3):89A.
Holliday, C. M. and L. M. Witmer. 2007. The epipterygoid of
crocodyliforms and its significance in the evolution of the
orbitotemporal region of eusuchians. 67th Annual Meeting
of the Society of Vertebrate Paleontology, Austin, TX. Journal of
Vertebrate Paleontology 27(Supplement to 3):90A.
Tsuihiji, T., M. Watabe, L. M. Witmer, T. Tsubamoto, K.
Tsogtbaatar. 2007. A juvenile skeleton of Tarbosaurus with a
nearly complete skull and its implications for ontogenetic change in
tyrannosaurids. 67th Annual Meeting of the Society of
Vertebrate Paleontology, Austin, TX. Journal of Vertebrate
Paleontology 27(Supplement to 3):160A.
Holliday, C. M. and L. M. Witmer. 2007. Cranial kinesis
in dinosaurs: significance for functional inferences and evolution.
8th International Congress of Vertebrate Morphology,
Paris, France.
Journal of Morphology 268(12):1085–1086.
L. M. Witmer and R. C. Ridgely. 2007. Evolving an
on-board flight computer: brains, ears, and exaptation in the
evolution of birds and other theropod dinosaurs. 8th
International Congress of Vertebrate Morphology, Paris, France.
Journal of
Morphology 268(12):1150.
Dufeau, D. L. and L. M. Witmer. 2007. Ontogeny and
phylogeny of the tympanic pneumatic system of crocodyliform
archosaurs. 8th International Congress of Vertebrate
Morphology, Paris, France.
Ridgely, R. C. and L. M. Witmer. 2007. Gross anatomical
brain region approximation (GABRA): a new technique for assessing
brain structure in dinosaurs and other fossil archosaurs. 8th
International Congress of Vertebrate Morphology, Paris, France.
Journal of Morphology 268(12):1124.
Tickhill, J. and L. M. Witmer. 2007. The Virtual Pig
head: digital imaging of cephalic anatomy. 8th
International Congress of Vertebrate Morphology, Paris, France.
Journal of Morphology 268(12):1141.
Hieronymus, T. L. and L. M. Witmer. 2007. Turtle beaks,
bird beaks, croc beaks? Parallel evolution of rhamphothecae in
Sauropsida. 8th International Congress of Vertebrate
Morphology, Paris, France.
Journal of Morphology 268(12):1083–1084.
Tickhill, J. and L. M. Witmer. 2007. The Virtual Pig
head: digital imaging of cephalic anatomy. Annual Meeting of the
Society of Integrative and Comparative Biology, Phoenix, AZ.
Hieronymus, T. L. and L. M. Witmer. 2007. How dinosaurs
build beaks: homology between avian rhamphotheca and diapsid facial
scales. Annual Meeting of the Society of Integrative and Comparative
Biology, Phoenix, AZ.
Tsuihiji, T. and L. M. Witmer. 2007.
Reconstruction and possible evolutionary changes of muscle and
ligament attachments in the occipital region and atlas-axis complex
in non-avian theropod dinosaurs. Annual Meeting of the Society of
Integrative and Comparative Biology, Phoenix, AZ.
2006 Dufeau, D. L. and L. M. Witmer. 2006.
Tympanic pneumaticity in Archosauria: Recognizing patterns of
organization and homology.
66th Annual Meeting of the Society of Vertebrate
Paleontology, Ottawa, ON. Journal of Vertebrate Paleontology
26(Suppl. to 3).
Hieronymus, T. L. and L. M. Witmer. 2006.
Horn morphology of Pachyrhinosaurus and horn evolution in
centrosaurine dinosaurs.
66th Annual Meeting of the Society of Vertebrate
Paleontology, Ottawa, ON. Journal of Vertebrate Paleontology
26(Suppl. to 3).
Holliday, C. M. and L. M. Witmer. 2006.
Critical appraisal of cranial kinesis in dinosaurs. 66th
Annual Meeting of the Society of Vertebrate Paleontology, Ottawa,
ON. Journal of Vertebrate Paleontology 26(Suppl. to 3).
Ridgely, R. C. and L. M. Witmer. 2006. Dead on
arrival: optimizing CT data acquisition of fossils using modern
hospital CT scanners. 66th Annual Meeting of the Society
of Vertebrate Paleontology, Ottawa, ON. Journal of Vertebrate
Paleontology 26(Suppl. to 3).
Ridgely, R. C. and L. M. Witmer. 2006.
Braincase morphology in tyrannosaurs using computed tomography and
3D visualization, with special reference to the cerebral endocast
and ear region.
Annual Meeting of the Society of Integrative and Comparative
Biology, Orlando, FL. Journal of Integrative and Comparative
Biology 45(6):1183.
Holliday, C. M. and L. M. Witmer. 2006.
Evolutionary morphology of the orbitotemporal region in Archosauria.
Annual Meeting of the Society of Integrative and Comparative
Biology, Orlando, FL. Integrative and Comparative
Biology 45(6):1014.
Hieronymus, T. L. and L. M. Witmer. 2006.
From armor to anchor: Character evolution of the skin and horns of
rhinos.
Annual Meeting of the Society of Integrative and Comparative
Biology, Orlando, FL. Integrative and Comparative
Biology 45(6):1012.
Dufeau, D. L. and L. M. Witmer. 2006.
Tympanic pneumaticity in theropod dinosaurs: Recognizing patterns of
organization and homology.
Annual Meeting of the Society of Integrative and Comparative
Biology, Orlando, FL. Integrative and Comparative
Biology 45(6):1126.
2005 Rommel,
S. A., A. Costidis, L. M. Witmer, R. C. Ridgely, and
K. Matassa. 2005. Comparative morphology of the epidural circulation
in harbor seals, bottlenose dolphins, and Florida manatees. Society
for Marine Mammalogy’s 16th Biennial Conference on the Biology of
Marine Mammals, San Diego, CA.
Chapla, M. E., D. P. Nowacek, S. A. Rommel, V. Sadler,
and L. M. Witmer. 2005. Three-dimensional reconstructions of
a Florida manatee (Trichechus manatus latirostris) head and
isolated ear bone: the search for sound pathways. Society for Marine
Mammalogy’s 16th Biennial Conference on the Biology of Marine
Mammals, San Diego, CA.
Witmer, L. M. and R. C. Ridgely. 2005.
Tyrannosaur brain and ear structure: ontogeny and implications for
sensory function and behavior. 65th Annual Meeting of the
Society of Vertebrate Paleontology, Mesa, AZ. Journal of
Vertebrate Paleontology 25(Suppl. to 3):10A.
Daniel, J. and L. M. Witmer. 2005. Heads and
skulls as sediment sorters: an actualistic, CT-based study in
taphonomy. 65th Annual Meeting of the Society of
Vertebrate Paleontology, Mesa, AZ. Journal of Vertebrate
Paleontology 25(Suppl. to 3):13A.
Hieronymus, T. L. and L. M. Witmer. 2005.
Revised horn reconstructions for extinct rhinocerotid taxa:
separating the contributions of dermis and epidermis to horn
rugosities. 65th Annual Meeting of the Society of
Vertebrate Paleontology, Mesa, AZ. Journal of Vertebrate
Paleontology 25(Suppl. to 3):29A.
Holliday, C. M. and L. M. Witmer. 2005.
Anatomical domains within sauropsid heads and their significance for
functional interpretation of extinct taxa. Integrative
and Comparative Biology 44:570.
2004
L. M. Witmer, R. C.
Ridgely, and S. D. Sampson. 2004.The ear region, cerebral
endocast, and cephalic sinuses of the abelisaurid theropod dinosaur
Majungatholus. 64th Annual Meeting of the Society
of Vertebrate Paleontology, Denver, CO. Journal of Vertebrate
Paleontology 24(Suppl. to 3):131A.
Ridgely, R. C. and
L. M. Witmer. 2004. New applications of CT scanning and 3D
modeling for dinosaur visualization. 64th Annual Meeting
of the Society of Vertebrate Paleontology, Denver, CO. Journal of
Vertebrate Paleontology 24(Suppl. to 3):103A–104A.
Holliday, C. M. and
L. M. Witmer. 2004. Anatomical domains within the heads of
archosaurs and their relevance for functional interpretation. 64th
Annual Meeting of the Society of Vertebrate Paleontology, Denver,
CO. Journal of Vertebrate Paleontology 24(Suppl. to 3):71A.
Hieronymus, T. L. and
L. M. Witmer. 2004. Cranial rugosity and dinosaur “horns:”
rhino and giraffe as model systems for skin reconstruction in fossil
taxa. 64th Annual Meeting of the Society of Vertebrate
Paleontology, Denver, CO. Journal of Vertebrate Paleontology
24(Suppl. to 3):70A.
L. M. Witmer.
2004. Invited Plenary Lecture—Fleshing out fossils: the present as
the key to a very different past. 7th International
Congress of Vertebrate Morphology, Boca Raton, FL. Journal of
Morphology 260(3):340.
Ridgely, R. C. and
L. M. Witmer. 2004. Beyond imaging: Using 3D-datasets in
comparative morphology . 7th International Congress of
Vertebrate Morphology, Boca Raton, FL. Journal of Morphology
260(3):321–322.
Clifford, A. B. and
L. M. Witmer. 2004. Rules of construction in proboscis
building in mammals. 7th International Congress of
Vertebrate Morphology, Boca Raton, FL. Journal of Morphology
260(3):283.
Hieronymus, T. L. and
L. M. Witmer. 2004. Rhinoceros horn attachment: anatomy and
histology of a dermally influenced bone rugosity. 7th
International Congress of Vertebrate Morphology, Boca Raton, FL.
Journal of Morphology 260(3):298.
Witmer, L. M.,
S. Chatterjee, J. Franzosa, T. Rowe, and R. C. Ridgely. 2004.
Neuroanatomy and
vestibular apparatus of pterosaurs: Implications for flight,
posture, and behavior. Annual
Meeting of the Society of Integrative and Comparative Biology, New
Orleans, LA. Integrative and Comparative Biology 43(6):832.
Hieronymus, T. L. and
L. M. Witmer. 2003.
Dermal enthesis:
anatomy and histology of rhinoceros horn attachment.
Annual Meeting of the Society of Integrative and Comparative
Biology, New Orleans, LA. Integrative and Comparative Biology
43(6):874.
2003
Witmer, L. M. 2003. Narial anatomy of ankylosaurian dinosaurs:
osteology and soft-tissue reconstruction. 63rd Annual
Meeting of the Society of Vertebrate Paleontology, St. Paul, MN.
Journal of Vertebrate Paleontology 23(Suppl. to 3):111A–112A.
Hieronymus, T. L. and L. M. Witmer. 2003. Rhinoceros horn
attachment: anatomy and histology. 63rd Annual Meeting of
the Society of Vertebrate Paleontology, St. Paul, MN. Journal of
Vertebrate Paleontology 23(Suppl. to 3):61A.
Clifford, A. B., and Witmer, L. M. 2003. Nasal structures in
moose (Cervidae: Alces).
Annual Meeting of the Society of Integrative and Comparative
Biology, Toronto, Ontario. Integrative and Comparative Biology
42(6):1209.
Holliday,
C. M. and L. M. Witmer. 2003. Archosaur jaw muscle homology
and evolution: extant data. Annual
Meeting of the Society of Integrative and Comparative Biology,
Toronto, Ontario. Integrative and Comparative Biology
42(6):1244–1245.
2002
Witmer, L. M., S. Chatterjee, T. Rowe, and J. Franzosa.
2002. Anatomy of the brain and vestibular apparatus in two
pterosaurs: implications for flight, head posture, and behavior.
Annual Meeting of the Society of Vertebrate Paleontology, Norman,
Oklahoma. Journal of Vertebrate Paleontology 22(Suppl. to
3):120A–121A.
Bimber, O., S. M. Gatesy, and L. M. Witmer. 2002.
Augmented paleontology: merging fossil specimens with computer
generated information for analysis and education. Annual Meeting
of the Society of Vertebrate Paleontology. Journal of
Vertebrate Paleontology 22(Suppl. to 3):36A.
Holliday, C. M. and L. M. Witmer. 2002. Functional
anatomy of archosaurian jaw musculature: preliminary findings.
Annual Meeting of the Society of Vertebrate Paleontology.
Journal of Vertebrate Paleontology 22(Suppl. to 3):66A.
Clifford, A. B. and L. M. Witmer. 2002. Not all noses are
hoses: an appraisal of proboscis evolution in mammals. Annual
Meeting of the Society of Vertebrate Paleontology. Journal of
Vertebrate Paleontology 22(Suppl. to 3):45.
Clifford, A. B., and Witmer, L. M. Proboscis
evolution in Mammalia: preliminary studies. Annual Meeting of the
Society of Integrative and Comparative Biology, Anaheim, California.
American Zoologist 41(6).
Holliday, C. M., R. C. Ridgely, J. C. Sedlmayr, and Witmer,
L. M. The articular cartilage of extant archosaur limb
bones: implications for dinosaur functional morphology and
allometry. Annual Meeting of the Society of Integrative and
Comparative Biology, Anaheim, California. American
Zoologist 41(6).
2001
Witmer, L. M. The position of the fleshy nostril in
dinosaurs and other vertebrates and its significance for nasal
function. 61st Annual Meeting of the Society of Vertebrate
Paleontology, Bozeman, Montana, October. Journal of
Vertebrate Paleontology 21 (3:Suppl.).
Holliday, C. M., R. C. Ridgely, J. C. Sedlmayr, and Witmer, L.
M. The articular cartilage of extant archosaur limb bones:
implications for dinosaur functional morphology and allometry. 61st
Annual Meeting of the Society of Vertebrate Paleontology, Bozeman,
Montana, October. Journal of Vertebrate Paleontology 21
(3:Suppl.).
Hill, R. V., L. M. Witmer, and M. A. Norell. A
new juvenile specimen of Pinacosaurus grangeri: ontogeny and
phylogeny of ankylosaurs. 61st Annual Meeting of the Society of
Vertebrate Paleontology, Bozeman, Montana, October. Journal
of Vertebrate Paleontology 21 (3:Suppl.).
Witmer, L. M.
Reconstructing the evolutionary
history of the nasal apparatus of Sauropsida, with special reference
to Archosauria.
Sixth International Congress of Vertebrate
Morphology, Jena, Germany.
Journal
of Morphology
248(3):301.
‡Sedlmayr, J. C., and L. M
Witmer.
Homology and evolution of cephalic vasculature in Archosauria.
Sixth
International Congress of Vertebrate Morphology, Jena, Germany.
Journal of Morphology
248(3):282.
Holliday, C. M., J. C. Sedlmayr, R. C. Ridgely, and L. M Witmer.
The
articular cartilage of extant archosaur long bones: implications for
dinosaur functional morphology and allometry.
Sixth International Congress of
Vertebrate Morphology, Jena, Germany.
Journal of Morphology
248(3):241–242.
Rehorek,
S. J., A. H. Savitsky, and L. M. Witmer. Vasculature of the
lepidosaur nasal cavity. Do iguanas have a bloddy nose?. 2001 Annual Meeting of the American Society of Ichthyology and
Herpetology, State College, Pennsylvania, July.
Clifford, A. B., and L. M. Witmer.
The narial anatomy of hooded seals (Cystophora cristata)
with respect to other Carnivora.
Annual Meeting of the Society of Integrative and Comparative
Biology, Chicago, Illinois, January. American
Zoologist 40(6):976.
Sedlmayr, J. C, and L. M. Witmer.
The avian suborbital air sac and its potential role in brain
cooling in birds and other dinosaurs.
Annual Meeting of the Society of Integrative and Comparative
Biology, Chicago, Illinois, January. American
Zoologist 40(6):1206.
2000
Witmer, L. M. Narial anatomy of extant amniotes and its
significance for the interpretation of narial novelty in dinosaurs.
Annual Meeting of the Society of Integrative and Comparative
Biology, Atlanta, Georgia. American
Zoologist 39(5):98A–99A.
Sedlmayr, J. C, and L. M. Witmer.
Cephalic vasculature in Archosauria, with special emphasis on the
nasal region. Annual Meeting
of the Society of Integrative and Comparative Biology, Atlanta, Georgia. American
Zoologist 39(5):16A.
1999
Witmer, L. M., and S. D. Sampson.
Nasal conchae and blood supply in some dinosaurs: physiological
implications. 59th Annual Meeting of the Society of Vertebrate
Paleontology, Denver, Colorado, October. Journal of Vertebrate
Paleontology 19(3:Suppl.):85A.
Sampson, S. D., and L. M. Witmer.
Novel narial anatomy in ceratopsid dinosaurs. 59th Annual Meeting
of the Society of Vertebrate Paleontology, Denver, Colorado, October.
Journal of Vertebrate
Paleontology 19(3:Suppl.):72A-73A.
Sedlmayr, J. C., and L. M. Witmer.
Cephalic vasculature in extant and fossil Archosauria, with special
emphasis on the nasal region. 59th Annual Meeting of the Society of
Vertebrate Paleontology, Denver, Colorado, October.
Journal of Vertebrate Paleontology 19(3:Suppl.)74A.
Rehorek,
S. J., A. H. Savitsky, L. M. Witmer, and S. D. Sampson. Cephalic
vasculature of the green iguana (Iguana
iguana) and tokay gecko (Gecko
gekko). 1999 Annual Meeting of the American Society of Ichthyology and
Herpetology, State College, Pennsylvania, June.
1998
Witmer, L. M. Aspects of comparative cross-sectional anatomy of dinosaur
skulls. 58th Annual Meeting of the Society of Vertebrate Paleontology,
Snowbird, Utah, October. Journal
of Vertebrate Paleontology 18(3:Suppl.):87A.
Witmer, L. M. Application
of the extant phylogenetic bracket (EPB) approach to the problem of
anatomical novelty in the fossil record. 58th Annual Meeting of the
Society of Vertebrate Paleontology, Snowbird, Utah, October.
Journal of Vertebrate
Paleontology 18(3:Suppl.):87A.
Papp, M. J., and L. M. Witmer. Cheeks, beaks, or freaks: a
critical appraisal of buccal soft-tissue anatomy in ornithischian
dinosaurs. 58th Annual Meeting of the Society of Vertebrate Paleontology,
Snowbird, Utah, October. Journal
of Vertebrate Paleontology 18(3:Suppl.):69A.
Sedlmayr, J. C., and L. M. Witmer.
Facial vasculature in extant Crocodylia with special reference to
narial cavernous tissue. 58th Annual Meeting of the Society of Vertebrate
Paleontology, Snowbird, Utah, October.
Journal of Vertebrate Paleontology 18(3:Suppl.):76A.
Sampson, S. D., Witmer, L. M., Forster, C. A., and Krause, D. W.
1998. The evolution and biogeography of Gondwanan theropod
dinosaurs: new information from the Late Cretaceous of Madagascar.
Journal of African Earth
Sciences 27(1A): 167-168.
1997
Witmer, L. M., and S. D. Sampson.
The interpretation of narial novelty in dinosaurs.
Sampson, S. D., L. M. Witmer, C. A. Forster, D. W. Krause, and
P. M. O’Connor. Discovery
of a complete theropod skull from the Late Cretaceous of Madagascar yields
new information on Majungasaurus,
Majungatholus, and Abelisauridae.
57th Annual Meeting of the Society of Vertebrate Paleontology, New
York City, New York, October. Journal
of Vertebrate Paleontology 17(3:Suppl.):73A.
Witmer, L. M. Bones,
air sacs, and natural selection: a new perspective on the function of
pneumatic sinuses. Fifth International Congress of Vertebrate Morphology,
Bristol, England. Journal of Morphology
232:340
Witmer, L. M., and S. D. Sampson.
Unusual narial structures in dinosaurs and other vertebrates. Fifth
International Congress of Vertebrate Morphology, Bristol, England.
Journal of Morphology
232:340
1996
Witmer, L. M. New aspects of the origin of birds: introduction to the
Roundtable discussion. 4th
International Meeting of the Society of Avian Paleontology and Evolution,
Washington, DC, 7 June.
Witmer, L. M., and W. D. Maxwell.
The skull of Deinonychus
(Dinosauria: Theropoda): new insights and implications.
56th Annual Meeting of the Society of Vertebrate Paleontology, New
York City, New York, October. Journal of Vertebrate Paleontology 16(3:Suppl.):73A.
Maxwell, W. D., and L. M. Witmer.
New material of Deinonychus
(Dinosauria: Theropoda). 56th
Annual Meeting of the Society of Vertebrate Paleontology, New York City,
New York, October. Journal
of Vertebrate Paleontology 16(3:Suppl.):51A.
1995
Witmer, L. M. Craniofacial pneumaticity and skull evolution in theropod
dinosaurs. 55th Annual
Meeting of the Society of Vertebrate Paleontology, Pittsburgh,
Pennsylvania, 1 November. Journal
of Vertebrate Paleontology 15(3:Suppl.):60A.
1994
Witmer, L. M. A revised terminology of the facial osteology of
archosauriforms. 54th Annual
Meeting of the Society of Vertebrate Paleontology, Seattle, Washington, 21
October. Journal
of Vertebrate Paleontology 14(3:Suppl.):53A.
1993
Witmer, L. M., and D. B. Weishampel. Remains of theropod
dinosaurs from the Upper Cretaceous St. Mary River Formation of
northwestern Montana, with special reference to a new maniraptoran
braincase. 53rd Annual Meeting of the Society of Vertebrate Paleontology,
Albuquerque, New Mexico. 16 October. Journal
of Vertebrate Paleontology 13(3:Suppl.):63A.
1992
Witmer, L. M. The many faces of archosaurs: some trends in archosaur facial
evolution. 52nd Annual Meeting of the Society of Vertebrate Paleontology,
Toronto, Ontario, Canada. 31 October. Journal
of Vertebrate Paleontology 12(3:Suppl.):60A.
1991
Witmer, L. M. Homology of facial structures in extant crocodilians and
birds: implications for the antorbital fossa of archosaurs. 51st Annual
Meeting of the Society of Vertebrate Paleontology, San Diego, California,
26 October. Journal
of Vertebrate Paleontology 11(3:Suppl.):62A.
1990
Witmer, L. M. A new pleurodiran turtle from the Miocene of east Africa and
its implications for the phylogenetics of podocnemine pelomedusids.
50th Annual Meeting of the Society of Vertebrate Paleontology,
Lawrence, Kansas, 10 October. Journal
of Vertebrate Paleontology 10(3:Suppl.):49A–50A.
Martin, L. D., and L. M. Witmer. The avifauna of the Niobrara
Chalk 50th Annual Meeting of
the Society of Vertebrate Paleontology, 1990. Journal
of Vertebrate Paleontology 10(3:Suppl.):34A.
1989
Witmer, L. M. The early evolution of the craniofacial air sac system in
birds. 107th Stated meeting
of the American Ornithologists’ Union, Pittsburgh, Pennsylvania, 10
August.
Witmer, L. M., K. D. Rose, and T. M. Bown.
Jaw biomechanics and feeding behavior of the gigantic Eocene bird Diatryma.
49th Annual Meeting of the Society of Vertebrate Paleontology, Austin,
Texas, 3 November. Journal of Vertebrate Paleontology 9(3:Suppl.):45A.
1988
Witmer, L. M. Aspects of braincase morphology of the Cretaceous bird Hesperornis. Second International Symposium, Society of Avian Paleontology
and Evolution, Los Angeles, California, 29 September.
Witmer, L. M. Mechanisms
of sound localization in some fossil archosaurs.
48th Annual Meeting of the Society of Vertebrate Paleontology,
Drumheller, Alberta, Canada, 13 October.
Journal of Vertebrate Paleontology 8(3:Suppl.):29A.
1987
Witmer, L. M. The nature of the antorbital fossa of archosaurs: shifting
the null hypothesis.
Fourth Symposium on Mesozoic Terrestrial Ecosystems, Drumheller,
Alberta, Canada, 12 August.
1986
Witmer, L. M. Palatal morphology and cranial kinesis in hesperornithiform
birds. 104th Stated meeting of the American Ornithologists’ Union,
Mississippi State University, Mississippi, 20 August.
Witmer, L. M. Cranial
pneumaticity in Mesozoic birds. 46th Annual Meeting of the Society of
Vertebrate Paleontology, Philadelphia, Pennsylvania, 6 November.
1985
Witmer, L. M. The oldest avian palates.
International Roundtable on the Evolution of Birds Based on the Testimony of
Fossils, Lyon, France, 18 September.
Witmer, L. M., and L. D. Martin.
Homologies of the avian palate. 103rd Stated meeting of the
American Ornithologists’ Union, Tempe, Arizona, 9 October.
Witmer, L. M. The
palate of hesperornithiform birds. 45th Annual Meeting of the Society of
Vertebrate Paleontology, Rapid City, South Dakota, 17 October.
1984
Witmer, L. M. Bird origins and the siphuncular system of birds and
crocodiles. 102nd Stated meeting of the American Ornithologists’ Union, Lawrence,
Kansas, 7 August.
Witmer, L. M. Bird
origins and the siphonial system of birds and crocodiles.
44th Annual Meeting of the Society of Vertebrate Paleontology,
Berkeley, California, 1 November.
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