Kinosternoidea

Kinosternoidea is a superfamily of aquatic turtles, which includes two families: Dermatemydidae, and Kinosternidae.

Kinosternoidea
Common musk turtle, a species of the superfamily Kinosternoidea
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Clade:	Americhelydia
Superfamily:	Kinosternoidea Joyce, Parham, and Gauthier 2004[1]
Families
Dermatemydidae[1] Kinosternidae[1]

Kinosternoids are cryptodires, turtles whose necks are able to retract within their shell. Molecular studies suggest they are likely the sister group to the snapping turtles of the family Chelydridae.^[2] They are also omnivorous, oviparous, phosphatic, and actively mobile.^[3]

Classification

Main article: Turtle classification

• Family Dermatemydidae^[1]

• Genus Dermatemys^[1]
• Genus Baptemys^[4]

• Family Kinosternidae^[1]

• Genus Hoplochelys^[4]
• Subfamily Staurotypinae^[1]

• Genus Claudius^[1]
• Genus Staurotypus^[1]

• Subfamily Kinosterninae^[1]

• Genus Kinosternon^[1]
• Genus Sternotherus^[1]

Past classification

The entirely unrelated big-headed turtle (Platysternon megacephalum) was previously included in classification.^[4]