Neopolygnathus vogesi (Ziegler, 1962) from the P. jugosus Zone at Ostrówka and Kowala in the Holy Cross Mountains and Dzikowiec  in the Sudetes - P₁ elements.

Diagnoza

Platform of P₁ elements with prominent oblique crests in the ventral part.

Porównanie

Populations of this species show a rather stable morphology, similar to co-occurring P. communis, but unlike early populations of the latter.

In a few samples from the P. jugosus Zone at Kowala rare juvenile specimens of a polygnathid have been found  of the kind identified with the Tournaisian Polygnathus margininvolutus Gedik, 1969. In the triangular shape of the strongly concave thin platform these elements are similar to juveniles of P. semicostatus. Similar forms occur in the Tournaisian, where they probably represent juveniles of Neopolygnathus vogesi (Dzik, 1997). The available material is too small to be sure of their nature.

Autekologia

Występowanie geograficzne

Ostrówka and probably Kowala in the Holy Cross Mountains and at Dzikowiec in the Sudetes.

Zasięg czasowy

P. jugosus to D. trigonica Zones.   Continues into the Carboniferous.

Materiały muzealne

ZPAL: 595 specimens.

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.