Planipolygnathus lagowiensis (Helms & Wolska, 1967) from the C. quadrantinodosa Zone at Łagów in Holy Cross Mountains.

Diagnoza

Leaf-like, relatively wide platform of P1 elements ornamented with small tubercles.

Porównanie

The species is preceded in the Łagów section by the somewhat similar L. fallax but transition between these species has not been demonstrated. A much more probable origin from L. glaber would require only development of tuberculation of the platform. This is actually the only apparent difference between these species.

Autekologia

Występowanie geograficzne

Łagów, Kowala, and Miedzianka.

Zasięg czasowy

Late C. marginifera Zone.

Materiały muzealne

ZPAL: 3,379 specimens.

Literatura

Khalymbadzha, V.G. & Mingaleev, I.M. 1994. Novye famenskie polignatidnye conodonty iz zilarijskoi serii vostochnogo sklona Uzhnogo Urala. Bulletin Moskovskogo Obshchestva Ispytatelei Prirody otdel geologicheskiy 69, 81-98.

Dzik, J. 2006. The Famennian "Golden Age" of conodonts and ammonoids in the Polish part of the Variscan sea. Palaeontologia Polonica 63, 1-359.