Lawrence Witmer
American paleontologist, researcher and university teacher
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Biology
Lawrence Witmer's Degrees
- PhD Anatomy Stony Brook University
- Masters Anatomy Stony Brook University
- Bachelors Biology University of California, San Diego
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Why Is Lawrence Witmer Influential?
(Suggest an Edit or Addition)According to Wikipedia, Lawrence M. Witmer is an American paleontologist and paleobiologist. He is a Professor of Anatomy and a Chang Ying-Chien Professor of Paleontology at the Department of Biomedical Sciences at the Heritage College of Osteopathic Medicine in Ohio University. Witmer is considered to be one of the world's foremost experts on soft-tissue anatomy of the skull in extinct animals such as dinosaurs and pterosaurs. One of Witmer's largest contributions to vertebrate paleontology was the creation of the Extant Phylogenetic Bracket approach to ancestral character state reconstruction. This methodology incorporates extensive comparative anatomy using physical and digital dissections of extant animals.
Lawrence Witmer's Published Works
Published Works
- 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 (1997) (497)
- 2 The Extant Phylogenetic Bracket and the importance of reconstructing soft tissues in fossils (2007) (448)
- Diffusible iodine‐based contrast‐enhanced computed tomography (diceCT): an emerging tool for rapid, high‐resolution, 3‐D imaging of metazoan soft tissues (2016) (318)
- Structural Extremes in a Cretaceous Dinosaur (2007) (262)
- CRANIOFACIAL ANATOMY OF MAJUNGASAURUS CRENATISSIMUS (THEROPODA: ABELISAURIDAE) FROM THE LATE CRETACEOUS OF MADAGASCAR (2007) (257)
- Using CT to Peer into the Past: 3D Visualization of the Brain and Ear Regions of Birds, Crocodiles, and Nonavian Dinosaurs (2008) (245)
- Neuroanatomy of flying reptiles and implications for flight, posture and behaviour (2003) (243)
- Homology of facial structures in extant archosaurs (birds and crocodilians), with special reference to paranasal pneumaticity and nasal conchae (1995) (202)
- Archosaur adductor chamber evolution: Integration of musculoskeletal and topological criteria in jaw muscle homology (2007) (198)
- New Insights Into the Brain, Braincase, and Ear Region of Tyrannosaurs (Dinosauria, Theropoda), with Implications for Sensory Organization and Behavior (2009) (196)
- Mesozoic Birds: Above the Heads of Dinosaurs (2002) (165)
- The Paranasal Air Sinuses of Predatory and Armored Dinosaurs (Archosauria: Theropoda and Ankylosauria) and Their Contribution to Cephalic Structure (2008) (151)
- Evolution of olfaction in non-avian theropod dinosaurs and birds (2011) (136)
- The craniofacial air sac system of Mesozoic birds (Aves) (1990) (134)
- Inner ear anatomy is a proxy for deducing auditory capability and behaviour in reptiles and birds (2009) (116)
- Open data and digital morphology (2017) (113)
- Cranial Kinesis in Dinosaurs: Intracranial Joints, Protractor Muscles, and Their Significance for Cranial Evolution and Function in Diapsids (2008) (105)
- Cartilaginous Epiphyses in Extant Archosaurs and Their Implications for Reconstructing Limb Function in Dinosaurs (2010) (98)
- The Braincase of the Basal Sauropod Dinosaur Spinophorosaurus and 3D Reconstructions of the Cranial Endocast and Inner Ear (2012) (89)
- Cranial Osteology of a Juvenile Specimen of Tarbosaurus bataar (Theropoda, Tyrannosauridae) from the Nemegt Formation (Upper Cretaceous) of Bugin Tsav, Mongolia (2011) (86)
- Hominoid Evolution and Climatic Change in Europe: The paleoecology of the Pikermian Biome and the savanna myth (1999) (84)
- Endocranial Anatomy of Lambeosaurine Hadrosaurids (Dinosauria: Ornithischia): A Sensorineural Perspective on Cranial Crest Function (2009) (83)
- The earliest-known duck-billed dinosaur from deposits of late Early Cretaceous age in northwest China and hadrosaur evolution (2003) (81)
- The Epipterygoid of Crocodyliforms and Its Significance for the Evolution of the Orbitotemporal Region of Eusuchians (2009) (80)
- A New Specimen of Pinacosaurus grangeri (Dinosauria: Ornithischia) from the Late Cretaceous of Mongolia: Ontogeny and Phylogeny of Ankylosaurs (2003) (75)
- The Facial Integument of Centrosaurine Ceratopsids: Morphological and Histological Correlates of Novel Skin Structures (2009) (74)
- Craniofacial Air Sinus Systems (72)
- Best practices for digitally constructing endocranial casts: examples from birds and their dinosaurian relatives (2016) (70)
- The Endocranial Anatomy of Therizinosauria and Its Implications for Sensory and Cognitive Function (2012) (67)
- Mechanical Analysis of Feeding Behavior in the Extinct “Terror Bird” Andalgalornis steulleti (Gruiformes: Phorusrhacidae) (2010) (65)
- A Basal Lithostrotian Titanosaur (Dinosauria: Sauropoda) with a Complete Skull: Implications for the Evolution and Paleobiology of Titanosauria (2016) (64)
- Biomechanics of the jaw apparatus of the gigantic Eocene bird Diatryma: implications for diet and mode of life (1991) (63)
- Ontogeny of the Middle-Ear Air-Sinus System in Alligator mississippiensis (Archosauria: Crocodylia) (2015) (62)
- Structure of white rhinoceros (Ceratotherium simum) horn investigated by X‐ray computed tomography and histology with implications for growth and external form (2006) (62)
- Vascular patterns in the heads of crocodilians: blood vessels and sites of thermal exchange (2016) (60)
- Edentulism, beaks, and biomechanical innovations in the evolution of theropod dinosaurs (2013) (59)
- The proboscis of tapirs (Mammalia: Perissodactyla): a case study in novel narial anatomy (1999) (59)
- Cranial biomechanics of Diplodocus (Dinosauria, Sauropoda): testing hypotheses of feeding behaviour in an extinct megaherbivore (2012) (54)
- Breathing Life Into Dinosaurs: Tackling Challenges of Soft‐Tissue Restoration and Nasal Airflow in Extinct Species (2014) (54)
- Merging Fossil Specimens with Computer-Generated Information (2002) (54)
- Nostril Position in Dinosaurs and Other Vertebrates and Its Significance for Nasal Function (2001) (51)
- The Braincase and Neurosensory Anatomy of an Early Jurassic Marine Crocodylomorph: Implications for Crocodylian Sinus Evolution and Sensory Transitions (2016) (51)
- Cranial osteology of the ankylosaurian dinosaur formerly known as Minmi sp. (Ornithischia: Thyreophora) from the Lower Cretaceous Allaru Mudstone of Richmond, Queensland, Australia (2015) (50)
- Tempo and Pattern of Avian Brain Size Evolution (2020) (49)
- Vascular Patterns in Iguanas and Other Squamates: Blood Vessels and Sites of Thermal Exchange (2015) (47)
- A Dome-Headed Stem Archosaur Exemplifies Convergence among Dinosaurs and Their Distant Relatives (2016) (46)
- Cranial Anatomy of Erlikosaurus andrewsi (Dinosauria, Therizinosauria): New Insights Based on Digital Reconstruction (2014) (44)
- Homology and Evolution of Avian Compound Rhamphothecae (2010) (43)
- Multibody dynamics model of head and neck function in Allosaurus (Dinosauria, Theropoda) (2013) (43)
- Cranial kinesis in the late Cretaceous birds Hesperornis and Parahesperornis (1988) (42)
- The internal cranial morphology of an armoured dinosaur Euoplocephalus corroborated by X‐ray computed tomographic reconstruction (2011) (42)
- Digital preparation and osteology of the skull of Lesothosaurus diagnosticus (Ornithischia: Dinosauria) (2015) (41)
- Inner ear sensory system changes as extinct crocodylomorphs transitioned from land to water (2020) (38)
- Evolutionary integration and modularity in the archosaur cranium. (2019) (38)
- Comparative Biomechanical Modeling of Metatherian and Placental Saber-Tooths: A Different Kind of Bite for an Extreme Pouched Predator (2013) (37)
- Case studies in novel narial anatomy: 3. Structure and function of the nasal cavity of saiga (Artiodactyla: Bovidae: Saiga tatarica) (2004) (35)
- Neurocranial Osteology and Neuroanatomy of a Late Cretaceous Titanosaurian Sauropod from Spain (Ampelosaurus sp.) (2013) (35)
- Cephalic vascular anatomy in flamingos (Phoenicopterus ruber) based on novel vascular injection and computed tomographic imaging analyses. (2006) (34)
- Titanosauria (Dinosauria, Sauropoda) from the Upper Cretaceous (Turonian) Bissekty Formation of Uzbekistan (2015) (34)
- Avian Cephalic Vascular Anatomy, Sites of Thermal Exchange, and the Rete Ophthalmicum (2016) (33)
- Palatal Biomechanics and Its Significance for Cranial Kinesis in Tyrannosaurus rex (2020) (32)
- The Cleveland Tyrannosaur Skull (Nanotyrannus or Tyrannosaurus): New Findings Based on CT Scanning, with Special Reference to the Braincase (2010) (32)
- Relative Size of Brain and Cerebrum in Tyrannosaurid Dinosaurs: An Analysis Using Brain-Endocast Quantitative Relationships in Extant Alligators (2013) (32)
- The Frontoparietal Fossa and Dorsotemporal Fenestra of Archosaurs and Their Significance for Interpretations of Vascular and Muscular Anatomy in Dinosaurs (2019) (31)
- Case studies in novel narial anatomy: 2. The enigmatic nose of moose (Artiodactyla: Cervidae: Alces alces) (2004) (31)
- Vascular Patterns in the Heads of Dinosaurs: Evidence for Blood Vessels, Sites of Thermal Exchange, and Their Role in Physiological Thermoregulatory Strategies (2020) (29)
- A New Titanosaurian Braincase from the Cretaceous “Lo Hueco” Locality in Spain Sheds Light on Neuroanatomical Evolution within Titanosauria (2015) (27)
- Divergence in skeletal mass and bone morphology in antarctic notothenioid fishes (2014) (24)
- Lower rotational inertia and larger leg muscles indicate more rapid turns in tyrannosaurids than in other large theropods (2018) (22)
- Deep evolutionary diversification of semicircular canals in archosaurs (2021) (21)
- A comparison of postnatal arterial patterns in a growth series of giraffe (Artiodactyla: Giraffa camelopardalis) (2016) (18)
- Rapid technique for imaging the blood vascular system using stereoangiography (2002) (18)
- Endocast structures are reliable proxies for the sizes of corresponding regions of the brain in extant birds (2020) (18)
- Ontogeny of a sexually selected structure in an extant archosaur Gavialis gangeticus (Pseudosuchia: Crocodylia) with implications for sexual dimorphism in dinosaurs (2020) (15)
- Beyond Endocasts: Using Predicted Brain-Structure Volumes of Extinct Birds to Assess Neuroanatomical and Behavioral Inferences (2020) (14)
- Dinosaurs: Fuzzy origins for feathers (2009) (14)
- Nasal conchae function as aerodynamic baffles: Experimental computational fluid dynamic analysis in a turkey nose (Aves: Galliformes) (2016) (13)
- Divergence in skeletal mass and bone morphology in antarctic notothenioid fishes (2014) (13)
- Convoluted nasal passages function as efficient heat exchangers in ankylosaurs (Dinosauria: Ornithischia: Thyreophora) (2018) (12)
- Cranial joint histology in the mallard duck (Anas platyrhynchos): new insights on avian cranial kinesis (2017) (11)
- Decelerated dinosaur skull evolution with the origin of birds (2020) (11)
- Intraspecific variation and symmetry of the inner-ear labyrinth in a population of wild turkeys: implications for paleontological reconstructions (2019) (11)
- Palaeontology: Feathered dinosaurs in a tangle (2009) (11)
- Palaeontology: Inside the oldest bird brain (2004) (10)
- Ontogenetic endocranial shape change in alligators and ostriches and implications for the development of the non-avian dinosaur endocranium. (2020) (10)
- New Information on the Cranial Morphology of Avimimus (Theropoda: Oviraptorosauria) (2017) (8)
- The Braincase and Inner Ear of ‘Metriorhynchus’ cf. ‘M.’ Brachyrhynchus – Implications for Aquatic Sensory Adaptations in Crocodylomorphs (2021) (7)
- A nose for all reasons. (2001) (6)
- Palaeontology: An icon knocked from its perch (2011) (6)
- Paranasal sinus system and upper respiratory tract evolution in Mesozoic pelagic crocodylomorphs (2021) (5)
- Modeling visual fields using virtual ophthalmoscopy: Incorporating geometrical optics, morphometrics, and 3D visualization to validate an interdisciplinary technique (2020) (5)
- Convergent evolution in dippers (Aves, Cinclidae): The only wing‐propelled diving songbirds (2021) (4)
- Ontogenetic variation in the crocodylian vestibular system (2021) (4)
- Rostral neurovasculature indicates sensory trade‐offs in Mesozoic pelagic crocodylomorphs (2021) (4)
- The brain and inner ear of the sauropod dinosaurs from Tendaguru (Tanzania) in the context of sauropod evolution: a unique glimpse into the sensory world of Gondwanan Jurassic giants (2014) (4)
- 3D visualization of vertebrate soft tissues using spiceCT (Selectively Perfusable Iodine‐based Contrast‐Enhanced CT) as a rapid alternative to diceCT (2018) (3)
- A method for mapping morphological convergence on three‐dimensional digital models: the case of the mammalian sabre‐tooth (2021) (3)
- The remarkable, recently extinct “mole‐duck” Talpanas lippa (Aves: Anseriformes) from Kauai, Hawaii: behavioral implications of its neuroanatomy and skull morphology (2017) (2)
- The first occurrence of an avian-style respiratory infection in a non-avian dinosaur (2022) (2)
- Two exceptionally preserved juvenile specimens of Gorgosaurus libratus (Tyrannosauridae, Albertosaurinae) provide new insight into the timing of ontogenetic changes in tyrannosaurids (2021) (2)
- Fetal developmental anatomy of the human cardiovascular and central nervous systems using Lugol’s iodine staining and micro‐computed tomography (923.6) (2014) (2)
- New digital braincase endocasts of two species of Desmatosuchus and neurocranial diversity within Aetosauria (Archosauria: Pseudosuchia) (2021) (2)
- A revised terminology of the facial osteology of Archosauriforms (1994) (2)
- Finite Element Comparison of Cranial Sinus Function in the Dinosaur Majungasaurus and Head-Clubbing Giraffes (2011) (2)
- Unveiling the third dimension in morphometry with automated quantitative volumetric computations (2021) (2)
- Peter W. Houde: Paleognathus birds from the Early Tertiary of the Northern Hemisphere (1989) (1)
- ‘Ear stones’ in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures (2022) (1)
- New Aspects of Avian Origins : Roundtable Report (2007) (1)
- Novel anatomical analysis of human embryos using iodine staining and micro‐computed tomography (CT Scanning) (2013) (1)
- Comparative paleoneurology of the basal dicraeosaurid sauropod Suuwassea emilieae (2015) (1)
- Dinosaurs for Adults (1998) (1)
- Modeling cranial biomechanics in archosaurs using 3D computational methods (17.5) (2014) (1)
- Science, Art, and Dinosaurs (2000) (1)
- Merging Fossil Specimens with Computer- Information (2002) (1)
- Comparative Anatomy and Biomechanics of the Feeding Apparatus of Parrots (Aves: Psittaciformes) (2017) (0)
- Books Received (2003) (0)
- The relationship of vascular anatomy to thermal physiology: linking anatomical and imaging studies to in vivo non‐invasive infrared thermography of free‐ranging birds (2018) (0)
- Effects of Maternal Protein Malnutrition and Intrauterine Growth Restriction on Redox State of the Central Nervous System in Offspring Rats (2007) (0)
- The nasal salt gland of extant birds: anatomical structure and its relevance for inferring the behavior and habitat preferences of extinct birds (2017) (0)
- Gross Anatomical Brain Region Approximation (GABRA): a new landmark‐based approach for estimating brain regions in dinosaurs and other archosaurs (2017) (0)
- Using airflow patterns to aid inferences of nasal soft‐tissue reconstructions in dinosaurs (2015) (0)
- The Visible Interactive Dinosaur project: fleshing out dinosaur head anatomy and function with advanced 3D imaging (2013) (0)
- PMJs and TMJs: convergence in the craniomandibular joints of crocodilians and mammals (2015) (0)
- Ontogeny of the Anterior Vertebrae in Cypriniforms and Characiforms ( Teleostei , Ostariophysi ) (0)
- Paleoneurology: A Sight for Four Eyes (2018) (0)
- Inside Dinosaurs: A Broader Impacts Program for Research, Teaching and Public Education Through Dinosaur Biology, Physics and Evolution (2017) (0)
- University of Birmingham Open data and digital morphology (2017) (0)
- Restoring dinosaur cephalic vascular anatomy and thermophysiology using osteological correlates and anastomotic connections (2017) (0)
- Closing in the skull: Drivers of ontogenetic changes in emu skulls, Dromaius novaehollandiae (Palaeognathae: Casuariidae) (2022) (0)
- Evidence for a novel cranial thermoregulatory pathway in thalattosuchian crocodylomorphs (2023) (0)
- Cranial biomechanics of Diplodocus (Dinosauria, Sauropoda): testing hypotheses of feeding behaviour in an extinct megaherbivore (2012) (0)
- Experimental Biology 2013 (2013) (0)
- Cadavers, death anxiety, and the early development of the medical double‐consciousness (2012) (0)
- A clearing-and-staining procedure for the study of the chondrocranium and other aspects of skeletal development in crocodilian embryos (2020) (0)
- Evidence for Blood Vessels and Physiological Heat Exchange in the Heads of Dinosaurs (2015) (0)
- A new specimen of Pinacosaurus grangeri from the Late Cretaceous of Mongolia Ontogeny and phylogeny of ankylosaurs (2003) (0)
- The first occurrence of an avian-style respiratory infection in a non-avian dinosaur (2022) (0)
- Issues in community organization (1972) (0)
- Icvm-6 Abstracts Analysis of Metric and Kinematic Parameters of the Locomotion in Af- Rican Elephants (loxodonta Africana) Homology and Evolution of Cephalic Vasculature in Archosauria Relation between the Ultrastructural Changes of Myofilaments and Neuromuscular Junctions during Altered Functional (0)
- Modified skulls but conservative brains? The palaeoneurology and endocranial anatomy of baryonychine dinosaurs (Theropoda: Spinosauridae). (2023) (0)
- Orbital soft tissues, bones, and allometry: Implications for the size and position of crocodylian eyes. (2022) (0)
- Flying Feathers (1997) (0)
- Vasculature of the Lepidosaur Nasal Cavity: Do Iguanas Have a Bloody Nose? (2001) (0)
- Dufeau-and-Witmer_2015-allometryData (2015) (0)
- OP-ICBJ190050 371..382 (2019) (0)
- Consilient evidence affirms expansive stabilizing ligaments in the tyrannosaurid foot (2022) (0)
- Dufeau-and-Witmer-2015_Alligator_OUVC10606_head_DICOM (1) (2015) (0)
- Anatomical diversity of the avian feeding system: preliminary analysis of the hyolingual apparatus (918.9) (2014) (0)
- Cephalic Vasculature of the Green Iguana (Iguana iguana) and Tokay Gecko (Gecko gekko) (1999) (0)
- A new missing link (1997) (0)
- Making sense of dinosaurs and birds (2021) (0)
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