Macrochelys

Macrochelys
Alligator snapping turtle
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Clade:	Americhelydia
Family:	Chelydridae
Genus:	Macrochelys Gray, 1856

Macrochelys is a genus in the family Chelydridae. The genus was considered monospecific until a 2014 study by Travis Thomas divided it into three separate species.

Currently, there are three extant species and two extinct species.

Unlike the family Chelydridae as a whole, the genus Macrochelys is exclusively North American. Hutchison (2008) considered genus Chelydrops to be a junior synonym of Macrochelys, and recombined its type species, Chelydrops stricta from the Miocene (early Barstovian) of Nebraska, as the (then) fourth species of Macrochelys.

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