Conditolepis marginifera (Helms, 1959) from its nominal zone at Łagów - P₁, P₂, S₀, S_1-2 and M elements.

Diagnoza

Short P₁ element with subcircular dorsal end, bearing a sharp ridge or row of tubercles along the anterior margin in proximity to the blade.

Porównanie

Because of the tremendous morphological variability of the P₁ elements of this species it is difficult to determine it reliably based on single specimens. In fact, the co-occurrence of C. inflexoidea, separated by a gap in morphologic variability, gives a helpful hint that one is dealing with a separate species and not with an extreme morphology of the stratigraphically preceding C. quadrantinodosa.

Autekologia

Występowanie geograficzne

Łagów, Kowala, Ostrówka, and Miedzianka.

Zasięg czasowy

Zone of its own.

Materiały muzealne

ZPAL: 1,430 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.