1994  Trevoneites Becker & House: 98.
     2002  Trevoneites.-Korn & Klug: 151.

Type species: Protornoceras foxi House, 1963, p.19 [OD].

A:   Small, subinvolute shells with evolute inner whorls.
B:   Growth lines biconvex, rursiradiate on lower flanks with subdued nodes.
G:   Low elements, moderately shallow dorsal lobe. Lateral lobe centred ventrad of seam.

[Similar to Protornoceras, regarded as homeomorphic but differing by lingulate dorsal lobe].