Gatunek typowy
Adelphoceras meslerianum Girty, 1909

Opis

Shell thickly discoidal or pachyconic with subangular or rounded umbilical margin, intermediate stage with rounded flanks and venter, at adult stage lenticular-oxyconic; without or with very faint ventrolateral grooves; suture line with V-shaped external lobe, moderately high median saddle, narrowly rounded ventrolateral saddle, and V-shaped adventive lobe.

Synonimy
Glyphioceratoides Knopp, 1931; Cravenites Bisat, 1950

Zasięg czasowy

Carboniferous; Visean - Serpukhovian 

Literatura

Korn, D. & Titus, A.L. 2011. Goniatites Zone (middle Mississippian) ammonoids of the Antler Foreland Basin (Nevada, Utah). Bulletin of Geosciences 86 (1): 107–196.

Wedekind, R. 1910. Posttornoceras Balvei n.g. et n.sp. Ein neuer Fall von Konvergenz bei Goniatiten. Centralblatt für Mineralogie, Geologie und Paläontologie, 1910: 768-771.