Subfamily of turtles
Kinosterninae is a subfamily of the family Kinosternidae, a family of aquatic turtles. Kinosterninae contains the genera Kinosternon and Sternotherus, which are native to much of the United States and northern Mexico.
There are 27 species from 4 genera in the two subfamilies Staurotypinae and Kinosterninae.
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References