Cyrtoclymenia acuta Czarnocki, 1989 from the P. styriacus Zone at Ostrówka in the Holy Cross Mountains.

Cyrtoclymenia acuta; growth lines, suture and outline of the shell.

Diagnoza

Cyrtoclymenia with acute venter.

Porównanie

As usual in early species of Cyrtoclymenia, but unlike the late ones, the suture is sinuous in the umbonal area. In this respect the studied specimen differs from co-occurring Cyrtoclymenia sp. but resembles that from the upper Wocklumeria beds at Kowala classified by Czarnocki  in Falciclymenia falcifera Münster, 1840. Because of its incomplete preservation and unexpectedly high stratigraphic origin I restrain from evaluating the phylogentic meaning of the latter.

Autekologia

Występowanie geograficzne

Ostrówka.

Zasięg czasowy

P. trachytera and L. styriacus Zones.  

Materiały muzealne

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.