Full reference: E. S. Gaffney and R. Hiatt. 1971. A new baenid turtle From the Upper Cretaceous of Montana. American Museum Novitates 2443:1-9
Sister taxa: none
Type specimen: AMNH 2601, a skull. Its type locality is Near Glendive (Stygiochelys estesi holotype locality), which is in a Maastrichtian terrestrial horizon in the Hell Creek Formation of Montana.
• Paleocene of United States (2: Colorado collections)
• Cretaceous of United States (2: Montana)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.