Full reference: I. G. Danilov and J. F. Parham. 2008. A reassessment of some poorly known turtles from the Middle Jurassic of China, with comments on the antiquity of extant turtles. Journal of Vertebrate Paleontology 28(2):306-318
Parent taxon: Cryptodira according to I. G. Danilov and J. F. Parham 2008
Sister taxa: Adocusia, Bashuchelyidae, Carettochelyoidea, Charitonyx tajanikolaevae, Chelonemydidae, Chelonioidea, Chelydridae, Chelydroidea, Chersidae, Chitracephalus, Cryptoderinea, Dermatochelydidae, Dermochelyoidea, Eucryptodira, Galvechelone, Glyptopidae, Glyptopsidae, Indochelyidae, Kallokibotioninae, Kayentachelyidae, Kinosternia, Kinosternoidae, Meiolanidae, Nanhsiungchelyidae, Panchelonioidea, Pantestudinoidea, Pantrionychia, Platysternoidea, Polysternum, Selmacryptodira, Trionychia, Trionychidae, Trionychoidea, Tritosternidae
Subtaxa: Toxochelys
Ecology: aquatic omnivore
Distribution:
• Miocene of United States (2: Nebraska collections)
• Cretaceous of Angola (1), Canada (5: Manitoba), United States (24: Alabama, Arkansas, Delaware, Kansas, South Carolina, South Dakota, Tennessee)
Total: 32 collections each including a single occurrence