PaleoDB taxon number: 337701
Full reference: W. A. Cobban. 1972. New and little-known ammonites from the Upper Cretaceous (Cenomanian and Turonian) of the western interior of the United States. United States Geological Survey Professional Paper 699:1-24
Type specimen: USNM 166396, a shell. Its type locality is USGS Mesozoic D6756, Baca County, which is in a Cenomanian carbonate limestone in the Greenhorn Limestone Formation of Colorado.
Ecology: fast-moving nektonic carnivore