Polynodosus diversus (Helms, 1959) from the L. styriacus Zone at Miedzianka - P₁ elements.

Diagnoza

Juvenile P₁ elements with a robust peniculus, mature elements with rows of parallel nodes along the oval platform with greatest width in its dorsal part.

Porównanie

Only subadult specimens of the species have been known previously, but in sample Md-14 from Miedzianka there is a gradation from morphs with a rather narrow platform to fragmentary large specimens with multiple rows of denticles. The species may be related to P. nodoundatus.

Autekologia

Występowanie geograficzne

  Miedzianka.

Zasięg czasowy

C. marginifera and L. styriacus Zone.

Materiały muzealne

ZPAL: 58 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.