Reptilia - Testudinata - Helochelydridae
Full reference: O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568
Parent taxon: Helochelydridae according to D. R. Lawver and B. A. Garner 2023
See also Anquetin 2012, Gentry and Ebersole 2021, Hay 1908, Hay 1930, Joyce 2017, Joyce et al. 2014, Kuhn 1966, López-Conde et al. 2018, Milner 2004, Ostrom 1970 and Peng et al. 2001
Sister taxa: Aragochersis, Helochelydra, Helochelys, Plastremys, Solemydinae, Trachydermochelys, Tretosternon
Subtaxa: Naomichelys speciosa
Ecology:
Distribution:
• Cretaceous of Canada (3: Alberta, British Columbia collections), Mexico (3), United States (38: Alabama, Arkansas, Idaho, Maryland, Missouri, Montana, Nevada, Oklahoma, Texas, Utah, Wyoming)
Total: 44 collections including 45 occurrences
Specimen images are retrieved through the ePANDDA API.