The Staurotypinae are a
subfamily of the
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Kinosternidae
The Kinosternidae are a family of mostly small turtles that includes the mud turtles and musk turtles. The family contains 25 species within four genera, but taxonomic reclassification is an ongoing process, so many sources vary on the exact num ...
of aquatic
turtle
Turtles are an order of reptiles known as Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked t ...
s, which contains the
genera ''
Claudius'' and ''
Staurotypus''.
''Staurotypus'' exhibits
XX/XY sex determination, in contrast to the temperature-dependent sex determination of most turtles. Although the exact mechanism of sex determination in ''Claudius'' is unknown, it is known to be genetically determined; it is suspected that it exhibits XX/XY sex determination as well.
Genera
* ''
Claudius''
* ''
Staurotypus''
References
Taxa named by John Edward Gray
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