Crocodile - Evolution, Classification, Adaptations | Britannica
2024年10月30日 · Crocodile - Evolution, Classification, Adaptations: The most primitive representatives of the crocodilian group occur in the Late Triassic Epoch. Taxonomy is based primarily by the anatomical peculiarities of their skulls.
Unravelling the surprisingly complex history of crocodiles
2023年11月17日 · Turn back the clock to the Triassic Period and the ancient crocodilians alive back then were far from lumbering, lethargic animals. The fossils of these creatures reveal that they were in fact fast-growing, active animals. So when did crocodiles make the switch to taking things more slowly?
Crocodilia - Wikipedia
The earliest stage of crocodilian evolution was the protosuchians in the late Triassic and early Jurassic. They were followed by the mesosuchians, which diversified widely during the Jurassic and the Tertiary. The eusuchians first appeared during the Early Cretaceous, and includes modern crocodilians. [18]
Crocodile - Wikipedia
Crocodiles (family Crocodylidae) or true crocodiles are large, semiaquatic reptiles that live throughout the tropics in Africa, Asia, the Americas and Australia.
Modern Crocodiles Are Evolving at a Rapid Rate | Smithsonian
2021年10月7日 · By comparing three-dimensional models to track anatomical landmarks on crocodylian skulls over time, the researchers found that modern crocodile species in Australia, southeast Asia and the...
Prehistoric Crocodile Evolution - ThoughtCo
2019年3月7日 · Along with pterosaurs and dinosaurs, crocodiles were an offshoot of the archosaurs, the "ruling lizards" of the early-to-middle Triassic period of the Mesozoic Era. This epoch in history began about 251 million years ago and ended 65 million years ago.
Research explains why crocodiles have changed so little since the …
New research by scientists at the University of Bristol explains how a ‘stop-start’ pattern of evolution, governed by environmental change, could explain why crocodiles have changed so little since the age of the dinosaurs.
Crocodile family tree reveals 250 million years of crocodile evolution
2023年12月5日 · Researchers at the University of York have made a breakthrough discovery in the field of evolutionary biology by mapping the family tree of crocodiles, including their extinct relatives known as Pseudosuchia.
Tracing The Evolution Of Crocodiles - Wildlife SOS
2022年11月1日 · According to the NCBI report, crocodilians diverged from birds more than 240 million years ago (mya). But fossil records show that animals having nearly similar morphological features to the extant crocodilian families – namely Alligatoridae, Crocodylidae and Gavialidae – first make their appearance somewhere between 80 and 90 mya.
Crocodiles’ origin story: how slow and steady won the race - Nature
2023年10月24日 · Fossils found in South Africa show that only slow-growing crocodile ancestors survived mass extinction and evolved into their present form.