Results 91 to 100 of about 6,741 (260)

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

The Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison, James Gregory, Christopher Jackson, Jordan Bestwick, Katlin Schroeder, Samuel J.L. Gascoigne, Paul Bills, Laura B. Porro, Philip D. Mannion, Paul M. Barrett   +9 more
wiley   +1 more source

Auditory perception and decision-making in crocodilians

, 2022
Les crocodiliens font face à un flux d'informations auditives qu'ils doivent détecter et identifier. Afin de comprendre comment ils analysent leur environnement sonore, j'ai mené une série d'études pour répondre à 3 questions : 1) comment les ...
Thévenet, Julie
core  

Periodontal ligament, cementum, and alveolar bone in the oldest herbivorous tetrapods, and their evolutionary significance. [PDF]

PLoS ONE, 2013
Tooth implantation provides important phylogenetic and functional information about the dentitions of amniotes. Traditionally, only mammals and crocodilians have been considered truly thecodont, because their tooth roots are coated in layers of cementum ...
Aaron R H LeBlanc, Robert R Reisz
doaj   +1 more source

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source

Environmental drivers of body size evolution in crocodile-line archosaurs

Communications Biology, 2021
Stockdale and Benton use a new phylogeny of living and extinct crocodilians and their closest relatives to model evolutionary rates and identify the relative influences of extrinsic and intrinsic drivers of evolution in this order.
Maximilian T. Stockdale, Michael J. Benton   +1 more
doaj   +1 more source

Exploring the cranial morphology and possible convergences of Triassic non‐crocodylomorph pseudosuchians (Archosauria: Pseudosuchia) with other sauropsids through linear morphometrics

The Anatomical Record, EarlyView.
Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras, Rodrigo Temp Müller, Leonardo Kerber, Mirian Carbonera   +3 more
wiley   +1 more source

Biophysical processes of morphogenesis in lizard lungs

Developmental Dynamics, EarlyView.
Abstract Background The lungs of squamate reptiles (lizards and snakes) are highly diverse, exhibiting single chambers, multiple chambers, transitional forms with two to three chambers, along with a suite of other anatomical features, including finger‐like epithelial projections into the body cavity known as diverticulae.
Kaleb Hill, Aaron H. Griffing, Michael A. Palmer, Bezia Lemma, Aria S. Lupo, Tony Gamble, Natalia A. Shylo, Andrej Košmrlj, Paul A. Trainor, Celeste M. Nelson   +9 more
wiley   +1 more source

Frugivory and Seed Dispersal by Crocodilians: An Overlooked Form of Saurochory?

, 2013
Saurochory (seed dispersal by reptiles) among crocodilians has largely been ignored, probably because these reptiles are generally assumed to be obligate carnivores incapable of digesting vegetable proteins and polysaccharides.
Rainwater, T. R., Nifong, J. C., F. J. Mazzotti, A. E. Rosenblatt, Platt, S. G., M. R. Heithaus, Rosenblatt, Adam E., T. R. Rainwater, H. Liu, J. C. Nifong, R. M. Elsey, Mazzotti, F. J., Liu, H., Heithaus, Michael R., S. G. Platt, Elsey, R. M.   +15 more
core   +1 more source

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

Developmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher, Antonia Weberling, Erin J. Vance, Natalia A. Shylo, Katherine Starr, Zoe B. Griffin, Hannah Wilson, Melainia McClain, Florian Hollfelder, Suzannah A. Williams, Thomas J. Sanger, Richard R. Behringer, Paul A. Trainor   +12 more
wiley   +1 more source

Crocodilians and Olmecs: Further Interpretations in Formative Period Iconography

, 1980
An ecological approach to religion is utilized to examine crocodilians represented in highland and lowland Mesoamerican art from the Early Formative to European contact.
Stocker, Terry, Armsey, Steve, Meltzoff, Sarah   +2 more
core   +1 more source