Gatunek typowy
Goniatites looneyi Phillips, 1836

Opis

Shell subdiscoidal to thick discoidal, elliptical in cross section, completely involute, smooth; growth lines form weak lateral and deep ventral sinuses; ventral lobe of suture divided by a fairly deep median saddle and by a pair of shorter subsidiary saddles; outermost lobelet of ventral lobe generally simple, innermost one generally wide and scalloped; first lateral saddle very high and rounded on top; lateral lobe generally with a deep notch on ventral side and also scalloped by tertiary denticulations.

Synonimy
Glyphiolobus Gordon, 1964

Zasięg czasowy

Carboniferous; Bashkirian

Literatura

Ruzhencev, V. E. 1947b. Predstaviteli semeistva Dimorphoceratidae Hyatt v kamennougol'nykh otlozheniyakh Urala. Doklady Akademii Nauk SSSR 56 (5): 521-524.