Results 81 to 90 of about 7,856 (239)
Why the long face? The mechanics of mandibular symphysis proportions in crocodiles. [PDF]
PLoS ONE, 2013 Crocodilians exhibit a spectrum of rostral shape from long snouted (longirostrine), through to short snouted (brevirostrine) morphologies. The proportional length of the mandibular symphysis correlates consistently with rostral shape, forming as much as ...
Christopher W Walmsley +8 more
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The Anatomical Record, EarlyView.Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza +3 more
wiley +1 more source
Presence of chitinase enzymes in crocodilians
Acta Herpetologica, 2014 Chitin is an abundant bio-polymer present as a structural component of many organisms such as arthropods, nematodes, mollusks, insects, and fungi, among others.
Pablo Siroski +4 more
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The Anatomical Record, EarlyView.Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar +5 more
wiley +1 more source
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
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Cnemidophorus tesselatus [PDF]
, 1986 Number of Pages: 2Integrative BiologyGeological ...
Price, Andrew H.
core +1 more source
Gonadal development in scorpion mud‐turtles, Kinosternon scorpioides, in a controlled environment
The Anatomical Record, EarlyView.Stage 20 was identified as the critical point for gonadal differentiation in Kinosternon scorpioides, providing key insights into sex determination. These findings enhance conservation strategies by supporting reproductive management and population viability in both in situ and ex situ programs. Abstract Research on gonadal development including sexual
Brenda Braga +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 +1 more
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Crocodilians in Perspective! [PDF]
American Zoologist, 1989 The prediction of the 1960s that crocodilians would soon be extinct has happily proven to be unduly pessimistic. The survival and recovery of substantial stocks provides us with the unexpected opportunity to learn about their adaptations, important not only because of their place as relicts of a major reptilian radiation, but also as giant animals ...
openaire +1 more source