Crocodilia - Wikipedia Crocodilia ( krɒkəˈdɪliə ) is an order of semiaquatic, predatory reptiles that are known as crocodilians They appeared 83 5 million years ago in the Late Cretaceous period (Campanian stage) and are the closest living relatives of birds, as the two groups are the only known survivors of the Archosauria
Crocodilian - San Diego Zoo Animals Plants Appearing about 230 million years ago, the hardy crocodilians have survived nearly every earthly scenario, though human interaction and ecosystem instability are proving their most formidable challenge yet They have outlived dinosaurs, ice ages, and more, yet they have changed very little over time
Crocodilians: Natural History and Conservation - Crocodiles, Caimans . . . Premier source of information on all 23 crocodilian species, including distribution maps, images, taxonomy and more Specific information on biology and behaviour discussed in depth and illustrated clearly, plus a list of frequently asked crocodile questions Crocodilians are the most vocal of all reptiles
Crocodile - Evolution, Classification, Adaptations | Britannica 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
Crocodylia | INFORMATION | Animal Diversity Web - ADW During the Mesozoic (245-65 million years ago) this group, including dinosaurs and other reptiles, dominated life on all continents and in the oceans Most or all of crocodilians' adaptations had already evolved by the late Triassic (about 200 million years ago)
What Defines Crocodylians: An Ancient Order of Reptiles Crocodylians are an ancient lineage of reptiles, representing the sole surviving members of an evolutionary history stretching back over 200 million years The order Crocodylia encompasses all living species of crocodiles, alligators, caimans, and gharials, establishing them as formidable apex predators
Crocodilian Species Range - Education The ranges of specific crocodilian species, as well as their population densities, are represented in this map from National Geographic Alligator species have a range mostly in the Americas, while crocodile species have ranges in Africa, Asia, and Australia
Crocodilians (Crocodiles, Alligators, Caimans, and Gharials) There are 23 widely recognized species of crocodiles, alligators, caimans, and gharials, all members of the order Crocodylia Superficially they resemble reptiles, yet their closest cousins are birds and extinct Dinosauria, a group known as archosaurs ("ruling reptiles")