Results 31 to 40 of about 1,044 (185)

Tracking crocodylia: a review of telemetry studies on movements and spatial use

open access: yesAnimal Biotelemetry, 2023
Crocodylians are top predators that play key ecological roles in aquatic ecosystems. As in other groups of large predators, crocodylian populations are often impacted by habitat loss, habitat degradation or direct exploitation for commercial purposes or ...
Paulo Braga Mascarenhas-Junior   +2 more
doaj   +1 more source

The biochronology and palaeobiogeography of Baru (Crocodylia: Mekosuchinae) based on new specimens from the Northern Territory and Queensland, Australia [PDF]

open access: yesPeerJ, 2017
New records of the Oligo–Miocene mekosuchine crocodylian, Baru, from Queensland and the Northern Territory are described. Baru wickeni and Baru darrowi are accepted as valid species in the genus and their diagnoses are revised.
Adam M. Yates
doaj   +2 more sources

Quantitative heterodonty in Crocodylia: assessing size and shape across modern and extinct taxa [PDF]

open access: yesPeerJ, 2019
Heterodonty in Crocodylia and closely related taxa has not been defined quantitatively, as the teeth rarely have been measured. This has resulted in a range of qualitative descriptors, with little consensus on the condition of dental morphology in the ...
Domenic C. D’Amore   +3 more
doaj   +2 more sources

Trophic interactions between larger crocodylians and giant tortoises on Aldabra Atoll, Western Indian Ocean, during the Late Pleistocene [PDF]

open access: yesRoyal Society Open Science, 2018
Today, the UNESCO World Heritage Site of Aldabra Atoll is home to about 100 000 giant tortoises, Aldabrachelys gigantea, whose fossil record goes back to the Late Pleistocene. New Late Pleistocene fossils (age ca.
Torsten M. Scheyer   +5 more
doaj   +1 more source

Crocodylus acutus (American crocodile) bite marks on a nest data logger [PDF]

open access: yesPeerJ, 2020
Several data loggers deployed to monitor temperature and humidity of Crocodylus acutus (American crocodile) nests in South Florida could not be located after hatching.
Stephanie K. Drumheller   +4 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]

open access: yesPLoS 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   +1 more source

A late-surviving phytosaur from the northern Atlantic rift reveals climate constraints on Triassic reptile biogeography

open access: yesBMC Ecology and Evolution, 2023
Background The origins of all major living reptile clades, including the one leading to birds, lie in the Triassic. Following the largest mass extinction in Earth’s history at the end of the Permian, the earliest definite members of the three major ...
Chase Doran Brownstein
doaj   +1 more source

A new goniopholidid from the Upper Jurassic Morrison Formation, USA: novel insight into aquatic adaptation toward modern crocodylians

open access: yesRoyal Society Open Science, 2021
Goniopholididae is a group of basal neosuchian crocodyliforms closely related to Paralligatoridae and Eusuchia that lived during the Jurassic and Early Cretaceous.
Junki Yoshida   +5 more
doaj   +1 more source

Small, enigmatic alligatoroid from the Middle Eocene Clarno Formation, John Day Fossil Beds, Oregon [PDF]

open access: yesFossil Record
Alligatoroidea is the crocodylian superfamily that includes extant alligators, caimans and many related extinct taxa. Palaeogene North America offers a rich record of alligatoroid diversity representing more than a dozen forms.
Jeremy B. Stout   +3 more
doaj   +3 more sources

Climate constrains the evolutionary history and biodiversity of crocodylians [PDF]

open access: yesNature Communications, 2015
AbstractThe fossil record of crocodylians and their relatives (pseudosuchians) reveals a rich evolutionary history, prompting questions about causes of long-term decline to their present-day low biodiversity. We analyse climatic drivers of subsampled pseudosuchian biodiversity over their 250 million year history, using a comprehensive new data set ...
Mannion, PD   +5 more
openaire   +3 more sources

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