Archosaur Families - Crocodylia

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9 Terms

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Alligatoridae

Alligators and Caimans

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Alligatoridae distribution

mostly Western Hemisphere (SE USA, Yangtze river in China), (Central and South America)

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Alligatoridae characteristics

lower jaw teeth fit into pits in upper jaws, large, wide range of body sizes

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Crocodylidae

Crocodiles

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Crocodylidae distribution

worldwide within ~30° of equator

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Crocodylidae characteristics

4th tooth of lower jaw fits into groove in upper jaw, includes largest extant reptile, agile, ambush predators

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Gavialidae

Gharial and False Gharial

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Gavialidae distribution

(Indian subcontinent) and (Indonesia)

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Gavialidae characteristics

long thin snout for catching fish, males have boss at end of snout, males guard young, both species are endangered