Gatunek typowy
Goniatites planidorsatus Münster, 1839 from the Famennian of Gattendorf in Franconia .

Opis

Diagnosis. — Conch with tabular or bicarinate venter and flat sides, open umbilicus, generalized tornoceratid suture and aperture with wide, gently rounded auricles. 

Remarks. — Among specimens classified in various species of the genus  only the lectotype fits the specific morphology of the members of the lineage represented in the Holy Cross Mountains, attributed to Armatites here. He later created the new genus Planitornoceras for species with a similar apertural profile but a Protornoceras-like suture.

Synonimy

Zasięg czasowy

Literatura

Dzik, J. 2006. The Famennian "Golden Age" of conodonts and ammonoids in the Polish part of the Variscan sea. Palaeontologia Polonica 63, 1-359.