Superfamily Trionychoidae Hay 1930 (turtle)
Reptilia - Thecophora - Trionychoidae
Full reference: O. P. Hay. 1930. Second Bibliography and Catalogue of the Fossil Vertebrata of North America 390(II):1-1074
Parent taxon: Thecophora according to O. P. Hay 1930
Sister taxa: Chelonioidae, Chelydoidae, Emydoidae, Pleurosternoidae, Thalassemydoidae
Subtaxa: none
Ecology: planktonic suspension feeder
Distribution: