Full reference: R. Estes. 1964. Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming. University of California Publications in Geological Sciences 49:1-187
Sister taxa: Ischyrhiza antiqua, Ischyrhiza chilensis, Ischyrhiza germaniae, Ischyrhiza hartenbergeri, Ischyrhiza iwakiensis, Ischyrhiza mira, Ischyrhiza nigeriensis, Ischyrhiza serra, Ischyrhiza viaudi, Onchosaurus (Ischyrhiza) marrocanus
Type specimen: UCMP 53917, a tooth (complete rostral tooth). Its type locality is Lull 2 Quarry (UCMP V-5620), which is in a Maastrichtian terrestrial sandstone in the Lance Formation of Wyoming.
Ecology: nektonic carnivore
• Paleocene of United States (1: Montana collection)
Total: 26 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.