2011. Goniatites sowerbyi. Korn & Titus, p. 179, text-figs. 55-60

Holotype. UMNH IP 4065, figured by Korn & Titus, text-fig. 55A.

max shell dm = 54 mm

Type locality. Trough Springs Canyon, bed 6 (sample 93NVLI-3); Camp Canyon Member of Chainman Formation, Goniatites eganensis Biozone