Gatunek typowy
Avignathus beckmanni Lys & Serre, 1957.

Opis

Emended diagnosis.- Symmetrical element with the medial process bearing two additional lateral rami.

Remark.- In the Polish early Frasnian P1 (sp) elements occur closely similar to those of A. decorosus but without any Avignathus-type symmetrical elements in the apparatus. Despite similar P1 (sp) elements they should be classified in different genera and species.

Species included.- A. decorosus and A. bifurcatus sp. n.

Synonimy

Zasięg czasowy

Literatura

Dzik, J. 2002. Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland. Acta Palaeontologica Polonica 47 (4): 565-650