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Three extant crocodilian species clockwise from top-left: saltwater crocodile (Crocodylus porosus), American alligator (Alligator mississippiensis), and gharial (Gavialis gangeticus) Crocodilia is an order of mostly large, predatory, semiaquatic reptiles, which includes true crocodiles, the alligators, and caimans; as well as the gharial and ...
An alligator, or colloquially gator, is a large reptile in the genus Alligator of the family Alligatoridae in the order Crocodilia. The two extant species are the American alligator (A. mississippiensis) and the Chinese alligator (A. sinensis). Additionally, several extinct species of alligator are known from fossil remains.
A. olseni fore limb Alligator prenasalis fossil. The superfamily Alligatoroidea includes all crocodilians (fossil and extant) that are more closely related to the American alligator than to either the Nile crocodile or the gharial. [1] This is a stem-based definition for alligators, and is more inclusive than the crown group Alligatoridae. [2]
In 1967, the American alligator was listed as an endangered species (under a law that was the precursor to the Endangered Species Act of 1973), since it was believed to be in danger of extinction throughout all or a significant portion of its range.
Once a dwindling species in South Carolina, alligators have rebounded thanks to being put on the endangered species list. They are so plentiful now, the state sponsors a limited hunting season ...
Seven species of reptiles were also found, including the American alligator species Alligator mississippiensis “documented across the greatest number of sites”.. Most of the reptiles were ...
Alligators are among the most massive reptiles on earth – only crocodiles are more enormous! Watch this video to discover the biggest alligators ever. Also, learn to distinguish between ...
Alligatorinae is cladistically defined as Alligator mississippiensis (the American alligator) and all species closer to it than to Caiman crocodylus (the spectacled caiman). [ 8 ] [ 9 ] This is a stem-based definition for Alligatorinae, and means that it includes more basal extinct alligator ancestors that are more closely related to living ...