Tripodellus mancus (Helms, 1963) from the L. styriacus Zone at Ostrówka in the Holy Cross Mountains - P₁ element.

Diagnoza

Strongly bent P₁ element with obtuse tip of the platform and strongly asymmetric juvenile basal cavity; apparatus unknown.

Porównanie

This is a poorly known species, represented by a few specimens of minute size in all published localities. Perhaps they represent marginal populations of the T. gonioclymeniae lineage at the stage of its allopatric separation from the main lineage of Tripodellus. Small size of elements seems consistent with apparently paedomorphic evolution of the lineage, marked by expansion of the sinuosa larva stage to the end of ontogeny. The platform of some specimens from Kowala show a pointed dorsal tip, which makes them similar to T. gonioclymeniae.

Autekologia

Występowanie geograficzne

Ostrówka and Kowala.

Zasięg czasowy

Early P. jugosus Zone. 

Materiały muzealne

ZPAL: 12 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.