Hemilistrona pulchra Chauff & Dombrowski, 1977 from the L. styriacus and the P. jugosus  Zones at Kowala in the Holy Cross Mountais - P₁ and P₂  elements.

Hemilistrona pulchra - P₁ and P₂ elements.

Diagnoza

Porównanie

Longitudinal ribs on the platform of P₂ elements characterize this species. Outside Missouri, it has been known from Thuringia. In the Holy Cross Mountains only a few elements have been found and they hardly offer anything new regarding the apparatus composition. In sample Ko-6 two P₁ elements of different ontogenetic age are associated. Both show an unusually low and sinusoidal blade and are lacking a free carina (blade), suggesting that this is the end-member of the lineage, well represented in the material of Chauff and Dombrowski (1977).

Autekologia

Występowanie geograficzne

Kowala.

Zasięg czasowy

L. styriacus and P. jugosus Zones. 

Materiały muzealne

ZPAL: 14 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.