Gatunek typowy
Goniatites truncatus Phillips, 1836

Opis

Conch thick discoidal with very tight umbilicus; ornamentation with smooth, strong biconvex and rectiradiat growth strips; suture with a very narrow external lobe, the flanks of which are parallel; median saddle low, ventrolateral saddle broadly rounded; adventitious lobe V-shaped with barely curved flanks.

Synonimy
Beyrichoceratoides Bisat, 1924

Zasięg czasowy

Carboniferous, Visean – Serpukhovian

Literatura

Brüning, K. 1923a. Beiträge zur Kenntnis des rheinisch-westfälischen Unterkarbons. Geologisches Archiv 1: 263-266.

Korn, D. 1988. Die Goniatiten des Kulmplattenkalkes (Cephalopoda, Ammonoidea; Unterkarbon; Rheinisches Schiefergebirge). Geologie und Palåontologie in Westfalen 11: 1–293.