Results 51 to 60 of about 26,721 (189)

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

Crown Clades in Vertebrate Nomenclature: Correcting the Definition of Crocodylia [PDF]

Systematic Biology, 2008
Wiens, J. J. 2001. Character analysis in morphological phylogenetics: Problems and solutions. Syst. Biol. 50:689–699. Wiens, J. J., and R. E. Etheridge. 2003. Phylogenetic relationships of hoplocercid lizards: Coding and combining meristic, morphometric, and polymorphic data using step matrices. Herpetologica 59:375– 398. Wiens, J. J., and M.
Martin, Jeremy E., Benton, Michael J.
openaire   +3 more sources

Herpetofauna, Ponte de Pedra Hydroelectric Power Plant, states of Mato Grosso and Mato Grosso do Sul, Brazil [PDF]

Check List, 2009
This paper presents a check list of amphibians and reptiles of the area under influence of Ponte de Pedra hydroelectricpower plant on Correntes River (municipality of Sonora), between the Brazilian states of Mato Grosso do Sul and MatoGrosso.
Silva Jr., N. J., Cintra, C . E. D., Silva, H. L. R., Costa, M. C., Souza, C. A., Pachêco Jr, A. A., Gonçalves, F. A.   +6 more
doaj   +4 more sources

Linked collectors and determiners for: Museu Paraense Emílio Goeldi - Crocodylia Collection. [PDF]

Natural history specimen data linked to collectors and determiners held within, "Museu Paraense Emílio Goeldi - Crocodylia Collection". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/5c205e70 ...
Bionomia
core   +7 more sources

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

The Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende, Gustavo Caldeira Cotta, Clara d' Ávila Fonseca Paiva de Paula Freitas, Leonardo Carvalho, Heloísa Helena Marques Oliveira, Victória Gomes Carvalho Silva, Lívia de Fátima Moreira Silva, Luciana Maria Silva, Samyra Maria dos Santos Nassif Lacerda, Guilherme Mattos Jardim Costa   +9 more
wiley   +1 more source

Computed tomography reveals the endocranial anatomy of Crocodylia: Implications for phylogenetic relationships and ecomorphological convergence across Crocodylomorpha

Journal of Anatomy, EarlyView.
The evaluation of the endocranial anatomy of 43 crocodylian species reveals several differences, including variation in the curvature of the encephalic endocast, the size of the endosseous labyrinth and paratympanic sinuses, and the presence of additional snout sinuses.
Paul M. J. Burke, Philip D. Mannion
wiley   +1 more source

Functional morphology and biomechanics of the locomotor apparatus in the large Late Triassic carnivore Postosuchus kirkpatricki (Archosauria: Rauisuchidae)

Journal of Anatomy, EarlyView.
A three‐dimensional model is used to analyze the locomotor biomechanics of the large Late Triassic archosaurian reptile Postosuchus kirkpatricki. The study finds that it is more uncertain than previously concluded whether it was quadrupedal or bipedal, and plantigrade or digitigrade, but it clearly had locomotor specializations including large hindlimb
John R. Hutchinson, Emily Faughey, Matthew Humpage, Tristan Dupuis, Oliver E. Demuth, Romain Pintore, Francois Clarac   +6 more
wiley   +1 more source

A description of dental microanatomy and implantation geometry in Chamaeleonidae

Journal of Anatomy, EarlyView.
A reassessment of the dental histology in adult chamaeleons reveals the presence of periodontal ligament. Alongside alveolar bone and cementum, these tissues together constitute a compacted and remodelled tripartite periodontium. Our findings include the novel observation of plicidentine‐like protuberances of dentine within underlying bone.
Giles D. Sukkert, Ilaria Paparella, Michael R. Doschak, Aaron R. H. LeBlanc, Michael W. Caldwell   +4 more
wiley   +1 more source

Biotic and abiotic factors driving the diversification dynamics of Crocodylia [PDF]

, 2019
Species diversity patterns are governed by complex interactions among biotic and abiotic factors over time and space, but are essentially the result of the diversification dynamics (differential speciation and extinction rates) over the long-term ...
Solórzano, Andrés, Inostroza-Michael, Oscar, Mónica Núñez‐Flores, Cristián E. Hernández, Nuñez-Flores, Mónica, Andrés Solórzano, Oscar Inostroza‐Michael, Hernández, Cristian   +7 more
core   +1 more source

Unique Population or Unique Species? Genetic Insights Into the Pygmy Freshwater Crocodiles of Northern Australia

Ecology and Evolution, Volume 16, Issue 8, August 2026.
There is debate over whether isolated populations of “pygmy” Australian freshwater crocodiles are a unique species. This is a conservation concern as these populations face unique challenges. We found some population differences which support these populations as being ecologically unique and valuable for targeted conservation.
Katherine Brittain, Torre Muhlbach, Rui Cao, Jose Luis Mijangos, Dean Yibarbuk, Erin O'Brien, Ruchira Somaweera, Nancy N. FitzSimmons, Jaime Gongora   +8 more
wiley   +1 more source