2011. Dimorphoceras worki. Korn & Titus, 2011, text-figs. 32, 33C

Holotype. UMNH IP 3229, figured by Korn & Titus, 2011, text-fig. 32.

Type locality. South Burbank Hills, bed 4; Camp Canyon Member of Chainman Formation, Calygirtyoceras arcticum Biozone.