Cephalopoda - Clymeniida - Platyclymeniidae

Full reference: D. Korn and A. Titus. 2006. The ammonoids from the Three Forks Shale (Late Devonian) of Montana. Fossil Record 9(2):198-212

Belongs to Platyclymenia according to D. Korn and A. Titus 2006

Sister taxon: Pleuroclymenia americana

Type specimen: MB.C.9129.1, a shell

Ecology: fast-moving nektonic carnivore