Diagnoza

The topmost sample Dz-15 in the Dzikowiec section, instead of providing evidence for further reduction of the basal cavity in the Weyerognathus lineage, has yielded Weyerognathuss p elementsw ith the basal cavity of size ranges comparable to the much older 'W. inaequalis .  The platform is also not as wide as in W triangulus but rather triangular with a tendency in adult specimens to develop an extension at one comer. Inthis respect this population seems to show, in an incipient form, the features diagnostic of the late Tournaisian W. pinnatus and most probably represents its lineage that immigrated to the area at the begrrlring of the sea deepening.

Porównanie

Autekologia

Występowanie geograficzne

Zasięg czasowy

Materiały muzealne

Literatura