Results 11 to 20 of about 900 (200)
Ontogenetic variation in the crocodylian vestibular system [PDF]
Journal of Anatomy, 2021 AbstractCrocodylians today live in tropical to subtropical environments, occupying mostly shallow waters. Their body size changes drastically during ontogeny, as do their skull dimensions and bite forces, which are associated with changes in prey preferences.
Julia A. Schwab +7 more
openaire +5 more sources
Acta Herpetologica, 2020 Two groups of extant Archosauria, Crocodylia and Neornithes, have two-chambered stomachs and store gastroliths inside their “gizzards”. Morphological similarities of the “gizzards” lead some previous studies to assume that the presence of this structure,
Ryuji Takasaki, Yoshitsugu Kobayashi
doaj +2 more sources
A juvenile subfossil crocodylian from Anjohibe Cave, Northwestern Madagascar [PDF]
PeerJ, 2016 Madagascar’s subfossil record preserves a diverse community of animals including elephant birds, pygmy hippopotamus, giant lemurs, turtles, crocodiles, bats, rodents, and carnivorans.
Joshua C. Mathews, Karen E. Samonds
doaj +5 more sources
Lower Eocene Footprints from Northwest Washington, USA. Part 1: Reptile Tracks
Geosciences, 2019 Lower Eocene fluvial strata in the Chuckanut Formation preserve abundant bird and mammal tracks. Reptile trace fossils include footprints from a small turtle (ichnogenus Chelonipus), and several Crocodylian trackways that consist of irregularly spaced ...
George E. Mustoe
doaj +2 more sources
Acta Palaeontologica PolonicaThe geographic distribution of Crocodylia in Europe throughout the Cenozoic experienced fluctuations in the extension of its northern limit. Whereas crocodylians reached very high latitudes during the early Eocene (78ºN), their northward extension was ...
Marcin Górka +5 more
doaj +2 more sources
An expanded combined evidence approach to the Gavialis problem using geometric morphometric data from crocodylian braincases and Eustachian systems. [PDF]
PLoS ONE, 2014 The phylogenetic position of the Indian gharial (Gavialis gangeticus) is disputed--morphological characters place Gavialis as the sister to all other extant crocodylians, whereas molecular and combined analyses find Gavialis and the false gharial ...
Maria Eugenia Leone Gold +2 more
doaj +2 more sources
The crocodylian skull and osteoderms: A functional exaptation to ectothermy? [PDF]
Zoology, 2019 The crocodylians are ectothermic semi-aquatic vertebrates which are assessed to have evolved from endothermic terrestrial forms during the Mesozoic. Such a physiological transition should have involved modifications in their cardio-vascular system allowing to increase the heat transfers with the surrounding environment by growing a peripheral ...
Clarac, F., Quilhac, A.
openaire +4 more sources
Zootaxa, 2019 The crocodylomorph fauna of the Cenozoic of South America is one of the richest and most diverse in the world. The most diverse group within that fauna is Alligatoroidea, with nearly all of its species belonging to the Caimaninae clade. Many of the fossil alligatoroid species from the Cenozoic of South America were proposed based on very incomplete ...
Cidade, Giovanne M. +3 more
openaire +4 more sources
Using Crocodylians for monitoring mercury in the tropics. [PDF]
Ecotoxicology, 2023 AbstractMercury contamination is a widespread phenomenon that impacts ecosystems worldwide. Artisanal Small Scale Gold Mining (ASGM) activities are responsible for more than a third of atmospheric Hg emission. Due to Hg toxicity and its broad and elevated prevalence in the environment resulting from ASGM activities in the tropics, its biomonitoring is ...
Lemaire J.
europepmc +5 more sources
Neuroanatomy of the crocodylian Tomistoma dowsoni from the Miocene of North Africa provides insights into the evolutionary history of gavialoids [PDF]
Journal of Anatomy, 2023 Paul M J Burke, Philip D Mannion
exaly +2 more sources