Order Testudines Wagler, 1830 - turtles Suborder Cryptodira Cope, 1868 Superfamily Kinosternoidea Agassiz, 1857 Family Kinosternidae Agassiz, 1857 - mud and musk turtles Subfamily Staurotypinae Gray, 1869 Genus Staurotypus Wagler, 1830 Staurotypus triporcatus (Wiegmann, 1828) - northern giant musk turtle