Gatunek typowy
Amorphognathus ordovicicus Branson & Mehl, 1933

Opis

The anterior and posterior processes of the P1 elements bifid, the former with lobes of almost equal length. The M elements with prominent denticulation.

Synonimy

Zasięg czasowy

Literatura

Bergström, S.M. & Leslie S.A. 2010. The Ordovician zone index conodont Amorphognathus ordovicicus Branson & Mehl, 1933 from its type locality and the evolution of the genus Amorphognathus Branson & Mehl, 1933. Journal of Micropalaeontology 29, 73−80.