Icriodus iowensis Youngquist & Peterson, 1947 from the Upper Kellwasserkalk at Płucki, P₁ elements.

Diagnoza

Clusters of coniform denticles have been found in the Upper Kellwasserkalk (Pł-391) at Płucki where the species occurs abundantly. The main difference in respect to earlier species is in the tendency of denticles in the icrion to form transverse ridges, especially in gerontic specimens. The cusp is slightly proclined.

Porównanie

Autekologia

Występowanie geograficzne

Zasięg czasowy

Materiały muzealne

Literatura

Dzik, J. 2002. Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland. Acta Palaeontologica Polonica 47 (4): 565-650