Type specimen: AMNH 5835, a partial skeleton (a laterally crushed skull, 75 vertebrae, ribs, the fragmented pectrum, one front limb, and numerous quartzite gastroliths of various sizes). Its type locality is Mule Creek, 15 miles west of Edgemont, which is in a Campanian marine shale in the Pierre Shale Formation of Wyoming.
Ecology: aquatic carnivore
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.