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   What is the difference between Alligatoridae and Alligatoroidea?

   • As a crown group, Alligatoridae only includes the last common ancestor of all extant (living) alligators, caimans, and their descendants (living or extinct ), whereas Alligatoroidea, as a stem-based group, also includes more basal extinct alligator ancestors that are more closely related to living alligators than to crocodiles or gavialids.

   Alligatoridae - Wikipedia

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   What cladistically defines Alligatorinae?

   • Alligatorinae is cladistically defined as Alligator mississippiensis (the American alligator) and all species closer to it than to Caiman crocodylus (the spectacled caiman ).

   Alligatorinae - Wikipedia

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   Are alligators extinct?

   • An alligator, or colloquially gator, is a large reptile in the genus Alligator of the family Alligatoridae of 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.

   Alligator - Wikipedia

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   Is Alligatoroidea a crocodylian?

   • Alligatoroidea is one of three superfamilies of crocodylians, the other two being Crocodyloidea and Gavialoidea. Alligatoroidea evolved in the Late Cretaceous period, and consists of the alligators and caimans, as well as extinct members more closely related to the alligators than the two other groups.

   Alligatoroidea - Wikipedia

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2. en.wikipedia.org › wiki › AlligatoridaeAlligatoridae - Wikipedia

   en.wikipedia.org › wiki › Alligatoridae

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   Alligatoridae - Wikipedia. Contents. hide. (Top) Phylogeny. Evolution. True alligators. Caimans. Taxonomy. References. External links. Alligatoridae. The family Alligatoridae of crocodylians includes alligators, caimans and their extinct relatives. Phylogeny. A. olseni fore limb. Alligator prenasalis fossil.

   • Caimaninae

     A caiman (/ ˈ k eɪ m ə n /; also cayman as a variant...

   • Leidyosuchus

     Leidyosuchus (meaning "Leidy's crocodile") is an extinct...

   • Alligatoroidea

     Alligatoroidea is one of three superfamilies of...

   • Alligatorinae

     Alligatorinae is a subfamily within the family Alligatoridae...

3. en.wikipedia.org › wiki › AlligatorAlligator - Wikipedia

   en.wikipedia.org › wiki › Alligator

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   An alligator, or colloquially gator, is a large reptile in the genus Alligator of the family Alligatoridae of 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.

4. simple.wikipedia.org › wiki › AlligatoridaeAlligatoridae - Simple English Wikipedia, the free encyclopedia

   simple.wikipedia.org › wiki › Alligatoridae

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   Beginning. Alligators vs crocodiles. Species. References. Alligatoridae. Alligators and Caimans make up the second largest family of the crocodilians, Alligatoridae. There are 4 genera and about 7 known species of Alligatorids. Alligatorids range in size depending on species.

5. en.wikipedia.org › wiki › American_alligatorAmerican alligator - Wikipedia

   en.wikipedia.org › wiki › American_alligator

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   The American alligator is a relatively large species of crocodilian. On average, it is the largest species in the family Alligatoridae, with only the black caiman being possibly larger. Weight varies considerably depending on length, age, health, season, and available food sources.