Rodzaj Amorphognathus
| Gatunek typowy Opis The anterior and posterior processes of the sp elements bifid, the former with lobes of almost equal length. The ne 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. | 
 | 
