Results 71 to 80 of about 4,079 (171)
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
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 +4 more
wiley +1 more source
Does the left aorta provide proton-rich blood to the gut when crocodilians digest a meal?
, 2019 Article measuring blood parameters in the left aortae and atria of crocodilians. The findings do not support the hypothesis that a R–L shunt serves to deliver CO2 for the gastrointestinal system after feeding in ...
Wang, Tobias +5 more
core +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
doaj +1 more source
From sagittal to sprawled: Clavicular co‐option and the evolution of forelimb mechanics in talpines
Journal of Anatomy, EarlyView.Forelimb posture in Eulipotyphla divides into sagittal and sprawled groups with distinct scapular and clavicular orientations. First true rib strength scales with body mass, reflecting vertical ground reaction forces, whereas clavicular strength reflects differences in medially directed forces on the pectoral girdle, especially pronounced in highly ...
Shin‐ichi Fujiwara, Hiroaki Saito
wiley +1 more source
Sound localization circuits in reptiles
Frontiers in Amphibian and Reptile ScienceLocation of sound sources is a fundamental task of the auditory system. Recent studies have shown that land vertebrates employ an array of sound localization strategies.
Dawei Han +4 more
doaj +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
Journal of Anatomy, EarlyView.We reconstruct the major cranial musculature of the giant stem amphibian Mastodonsaurus giganteus, revealing a differentiated jaw‐adductor system, a probable sesamoid pulley, and previously unrecognised muscles. This EPB‐based case study establishes an anatomical framework for modelling feeding in early tetrapods and supports interpretations of ...
Daniel Schwarz +5 more
wiley +1 more source
Amphibians and Reptiles of Myanmar: Checklists and Keys. I. Amphibians, Crocodilians, and Turtles
, 2022 Myanmar (formerly Burma) has 150 species of formally described amphibians (5 salamanders, 2 caecilians, and 143 frogs) and more than 200 species of reptiles (2 crocodilians, 20 turtles, 100+ lizards, and 100+ snakes).
George R. Zug (565593)
core +1 more source
Phylogenetic Reconstruction of Lung Evolution in Extant Squamata
Journal of Zoology, EarlyView.The Squamata group exhibits remarkable diversity in lung structure. However, a comprehensive understanding of how this variation evolved within the clade is still lacking. To reconstruct the evolutionary history of lungs of living squamates, we conducted comparative phylogenetic analyses using categorized lung traits, such as lung type, respiratory ...
Barbara de Godoi Champini +2 more
wiley +1 more source