Pseudopolygnathus ostrovkensis Dzik, 2006 from the P. jugosus Zone at Ostrówka  in the Holy Cross Mountains.

Pseudopolygnathus ostrovkensis - P₁ element.

Diagnoza

Usually wide icrion of P₁ elements; in the dorsal part composed of three rows of robust denticles, the medial row being of the same height as the lateral ones.

Porównanie

Probably also specimens identified with the Tournaisian Pseudopolygnathus vogesi  Dreesen et al., 1976 from the Famennian of Belgium are conspecific. There is a possibility that this is the beginning of the P. primus lineage, as suggested by findings of populations morphologically close and transitional in time. However, an independent origin of the Carboniferous Pseudopolygnathus from a less elaborate latest Famennian Pseudopolygnathus seems more likely because of the substantial gap in continuity in the late Famennian and much wider population variability of P. primus (covering also morphologies typical for the late Famennian) than is observed in P. ostrovkensis Dzik, 2006

Autekologia

Występowanie geograficzne

Jabłonna, Ostrówka, Kowala, and Dzikowiec. 

Zasięg czasowy

Latest L. styriacus to D. trigonica Zones. 

Materiały muzealne

ZPAL: 2,927 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.