PaleoDB taxon number: 145271
Full reference: N. H. Landman and K. M. Waage. 1993. Scaphitid ammonites of the Upper Cretaceous (Maastrichtian) Fox Hills Formation in South Dakota and Wyoming. Bulletin of the American Museum of Natural History 215:1-257
Type specimen: YPM 23175, a shell. Its type locality is RB103, Redbird, which is in a Maastrichtian marine sandstone in the Fox Hills Formation of Wyoming.
Ecology: fast-moving nektonic carnivore