Alligatoroidea

Alligatoroidea Fossil range: Late Cretaceous - Recent
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Sauropsida
Subclass:	Diapsida
Infraclass:	Archosauromorpha
(Unranked) :	Crurotarsi
Superorder:	Crocodylomorpha
Order:	Crocodilia
Suborder:	Eusuchia
Superfamily:	Alligatoroidea Gray, 1844

Alligatoroidea is a superfamily of crocodilians that evolved in the Late Cretaceous period. Cladistically, it is defined as Alligator mississippiensis (the American alligator) and all crocodylians more closely related to A. mississippiensis than to either Crocodylus niloticus (the Nile crocodile) or Gavialis gangeticus (the gharial).^[1]

References[]

^ Brochu, Christopher A. (May 2003). "Phylogenetic approaches toward crocodylian history". Annual Review of Earth and Planetary Sciences 31: 360.

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[brochu-1] Brochu, Christopher A. (May 2003). "Phylogenetic approaches toward crocodylian history". Annual Review of Earth and Planetary Sciences 31: 360.

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