Gatunek typowy
Ancyrognathus symmetricus Branson & Mehl, 1934 from the Famennian Saverton Shale at Sees Creek in Monroe County, Missouri.

Opis

Elongated platform in P1 elements, tending to develop a prominently tuberculation; triramous in early species; other elements of the apparatus tend to develop a rudimentary platform but still of a generalized polygnathid morphology.

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.