Gatunek typowy
Polygnathus communis Branson et Mehl, 1934 from the Tournaisian Bushberg sandstone at Brickeys, Missouri.

Opis

Elements P1 with relatively thin and wide, generally smooth or weakly tuberculated platform and small pit; P2 elements regularly triangular in profile, with densely distributed denticles; apparatus of generalised polygnathid morphology, all elements of rather small size and gracile appearance

Synonimy

Zasięg czasowy

Famennian-Tournaisian

Literatura

Dzik, J. 1997. Emergence and succession of Carboniferous conodont and ammonoid communities in the Polish part of the Variscan sea. Acta Palaeontologica Polonica 42, 57-170.

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