Results 91 to 100 of about 4,700 (213)

Shell bone histology of solemydid turtles (stem Testudines): palaeoecological implications [PDF]

open access: yes, 2021
Lately, solemydid turtles have been repeatedly recovered as stem Testudines, indicating that they belong to neither one of the two major branches of crown turtles, the Pancryptodira and Panpleurodira.
Scheyer, T.   +2 more
core  

Morphology and osteo‐histology of the weigeltisaurid wing: Implications for aerial locomotion in the world's first gliding reptiles

open access: yesJournal of Anatomy, Volume 248, Issue 5, Page 843-872, May 2026.
This study investigates the morphology and osteo‐histology of the wing skeleton of the world's first gliding reptiles, showing how it differs from those of extant gliding lizards, yet is also convergently similar. These findings pave the way for future biomechanical studies on the gliding locomotion of these emblematic fossil animals. Abstract The Late
Valentin Buffa   +7 more
wiley   +1 more source

Inferred presence of extraoral tissues in Triassic archosauromorphs and the evolutionary implications for the clade Sauropsida

open access: yesPalaeontology, Volume 69, Issue 3, 2026.
Abstract Recent work has suggested that the presence of extraoral soft tissues (‘lips’), in the form of labial scales in theropod dinosaurs, could be inferred based on: anteroposteriorly distributed foramina in the rostral bones, similar to extant lepidosaurs; vertically projected teeth; uniform enamel thickness in maxillary teeth; and an allometric ...
Rafael Terras   +9 more
wiley   +1 more source

Drivers of Thermal Habitat Use in Turtles Studied Under Semi‐Natural Conditions

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
We quantify thermal habitat use in nine turtle species by recording environmental temperatures experienced by individuals in semi‐natural settings. Thermal habitat use differed among species and higher temperatures were generally used by larger animals, pointing to behavioral mechanisms that may influence species responses to environmental change. This
Emma White   +8 more
wiley   +1 more source

Ecologia e conservação dos testudines, nordeste do Brasil. [PDF]

open access: yes, 2013
Estudos que visem investigar a ecologia e diversidade genética das populações de testudines são essenciais para avaliar a resposta das comunidades aquáticas dos testudines aos impactos antrópicos e as modificações nos habitats destes animais.
Carina Carneiro de Melo Moura   +1 more
core  

Computed tomography for evaluation of the normal lung in adult male terrapins of five captive species

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
Data on the tomographic characteristics of lung parenchyma in terrapins are rare. The objective of this study was to describe the tomographic anatomy of the lung parenchyma in five species of terrapins and estimate the normal CT attenuation values of the
I.C.C. Silva   +5 more
doaj   +1 more source

Testudines Batsch 1788

open access: yes, 2013
Published as part of Takahashi, Akio, Ōki, Kimihiko, Ishido, Takahiro & Hirayama, Ren, 2013, A new species of the genus Ocadia (Testudines: Geoemydidae) from the middle Miocene of Tanegashima Island, southwestern Japan and its paleogeographic implications, pp.
Takahashi, Akio   +3 more
openaire   +1 more source

Ontogenia dos ossos da cintura peitoral e membros torácicos em embriões de Podocnemis unifilis

open access: yesRevista de Biologia Neotropical, 2017
Os Testudines abrangem um grupo restrito que combinam aspectos primitivos e derivados, por exemplo, no esqueleto de seus membros. Para descrever a ontogenia do esqueleto da cintura peitoral e dos membros torácicos de Podocnemis unifilis, 66 embriões ...
Fabiano Campos Lima   +9 more
doaj   +1 more source

66 | THE EVOLUTION OF NEURONAL SCALING IN AMNIOTES

open access: yesEuropean Journal of Histochemistry
Similarly sized brains can be made of highly different neuron numbers, that is along the evolution of amniotes multiple shifts in the evolution of the scaling relationships between brain-size vs brain-neurons should have occurred to justify the diversity
GEI - SOCIETÀ ITALIANA DI BIOLOGIA DELLO SVILUPPO E DELLA CELLULA
doaj   +1 more source

Some notable records of testudines from the Indian and Burmese subregions [PDF]

open access: yes, 1994
Observations on 21 species of Testudines from the Indian and Burmese subregions are discussed, including 11 terrapins, three land tortoises and seven softshells.
Das, I., Frazier, John G.
core  

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