Full reference: J. Leidy. 1856. Notices of remains of extinct reptiles and fishes, discovered by Dr. F. V. Hayden in the bad lands of the Judith River, Nebraska Territory. Proceedings of the Academy of Natural Sciences of Philadelphia 8:72-73
Type specimen: ANSP 9269, a partial shell (small fragments of costal and sternal plates). Its type locality is Judith River badlands (USGS), which is in a Campanian/Campanian terrestrial horizon in the Judith River Formation of Montana.
Ecology: aquatic omnivore
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.