Diagnoza

Concentric ridges forming a fingerprint-like appearance of the mature platform of P₁ elements.

Porównanie

Many species names are available for advanced Polylophodonta. Although it cannot be excluded that several biological species are represented in the studied material, I am not able to find any discontinuity in the observed population variability.

Autekologia

Występowanie geograficzne

Jabłonna, Kowala, Kadzielnia, Łagów, Miedzianka, and Ostrówka.

Zasięg czasowy

Mid K. crepida to P. trachytera Zones. 

Materiały muzealne

ZPAL: 559 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.