PaleoDB taxon number: 65789
Full reference: C. W. Gilmore. 1916. Description of two new species of turtles, from the Lance Formation of Wyoming. Proceedings of the United States National Museum 50(2137):614-646
Type specimen: USNM 6728, a shell (a carapace and plastron). Its type locality is Niobrara County, United States Geological Survey, which is in a Maastrichtian terrestrial horizon in the Lance Formation of Wyoming.
Ecology: aquatic carnivore