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Lawrence M Witmer

Explore the profile of Lawrence M Witmer including associated specialties, affiliations and a list of published articles. Areas
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Articles 75
Citations 1480
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Recent Articles
1.
Young M, Schwab J, Dufeau D, Racicot R, Cowgill T, Bowman C, et al.
R Soc Open Sci . 2024 Oct; 11(10):241272. PMID: 39479241
During major evolutionary transitions, groups develop radically new body plans and radiate into new habitats. A classic example is cetaceans which evolved from terrestrial ancestors to become pelagic swimmers. In...
2.
Osvath M, Nemec P, Brusatte S, Witmer L
Trends Cogn Sci . 2024 Sep; 28(11):998-1010. PMID: 39242238
The evolution of whole-body endothermy occurred independently in dinosaurs and mammals and was associated with some of the most significant neurocognitive shifts in life's history. These included a 20-fold increase...
3.
Yu C, Watanabe A, Qin Z, Logan King J, Witmer L, Ma Q, et al.
Commun Biol . 2024 Feb; 7(1):168. PMID: 38341492
Many modifications to the skull and brain anatomy occurred along the lineage encompassing non-avialan theropod dinosaurs and modern birds. Anatomical changes to the endocranium include an enlarged endocranial cavity, relatively...
4.
Bourke J, Witmer L
J Morphol . 2023 Aug; 284(9):e21619. PMID: 37585224
The nasal passage performs multiple functions in amniotes, including olfaction and thermoregulation. These functions would have been present in extinct animals as well. However, fossils preserve only low-resolution versions of...
5.
Young M, Bowman C, Erb A, Schwab J, Witmer L, Herrera Y, et al.
PeerJ . 2023 May; 11:e15353. PMID: 37151298
Thalattosuchian crocodylomorphs were a diverse clade that lived from the Early Jurassic to the Early Cretaceous. The subclade Metriorhynchoidea underwent a remarkable transition, evolving from semi-aquatic ambush predators into fully...
6.
Cerio D, Witmer L
Anat Rec (Hoboken) . 2022 Dec; 306(10):2537-2561. PMID: 36508325
Although the visual system of crocodylians has attracted interest regarding optical parameters and retinal anatomy, fundamental questions remain about the allometry of the eyeball and whether such scaling is the...
7.
Schwab J, Young M, Walsh S, Witmer L, Herrera Y, Timmons Z, et al.
R Soc Open Sci . 2022 Mar; 9(3):211633. PMID: 35345438
The vestibular system of the inner ear is a crucial sensory organ, involved in the sensation of balance and equilibrium. It consists of three semicircular canals that sense angular rotations...
8.
Woodruff D, Wolff E, Wedel M, Dennison S, Witmer L
Sci Rep . 2022 Feb; 12(1):1954. PMID: 35145134
Other than repaired fractures, osteoarthritis, and periosteal reaction, the vertebrate fossil record has limited evidence of non-osseous diseases. This difficulty in paleontological diagnoses stems from (1) the inability to conduct...
9.
Schwab J, Young M, Walsh S, Witmer L, Herrera Y, Brochu C, et al.
J Anat . 2021 Nov; 240(5):821-832. PMID: 34841534
Crocodylians today live in tropical to subtropical environments, occupying mostly shallow waters. Their body size changes drastically during ontogeny, as do their skull dimensions and bite forces, which are associated...
10.
Smith N, Koeller K, Clarke J, Ksepka D, Mitchell J, Nabavizadeh A, et al.
Anat Rec (Hoboken) . 2021 Nov; 305(7):1563-1591. PMID: 34813153
Of the more than 6,000 members of the most speciose avian clade, Passeriformes (perching birds), only the five species of dippers (Cinclidae, Cinclus) use their wings to swim underwater. Among...