Pseudopolygnathus jugosus (Branson & Mehl, 1934) from its nominal Zone at Jabłonna in the Holy Cross Mountains.

Diagnoza

Icrion in the dorsal part of mature P₁ element composed of two rows of denticles and additional medial row of minute denticles.

Porównanie

Icrion developed in this species by widening denticle tips in juveniles and shows axial symmetry owing to asymmetric position of the sharp ridge along the ventral portion of the blade. Mirror-image symmetry is still clearly expressed in curvature of the blade.

Autekologia

Występowanie geograficzne

Kowala, Jabłonna, Ostrówka, and Dzikowiec.

Zasięg czasowy

P. jugosus and D. trigonica Zones. 

Materiały muzealne

ZPAL: 3,111 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.