Palmatolepis sandbergi Ji et Ziegler, 1993 from the late K. triangularis and early K. crepida Zones at Jabłonna in the Holy Cross Mountains.

Diagnoza

M element with proclined cusp and short finely denticulated ventral process forming a wide angle with the prominently denticulated dorsal process.

Porównanie

Except for the apparent trend towards typical Palmatolepis in the morphology of M elements, the apparatus is similar to Klapperilepis triangularis.

In bed 3 at Jabłonna P₁ elements somewhat resembling those of Conditolepis lobicornis, but with the posterior lobe of the platform differently oriented, co-occur with P₂ and M elements closely similar to those of P. sandbergi (Fig. 96M, O-P). Whether the proposed apparatus composition is correct, and then this is possibly a new species of Palmatolepis, or the platform elements belong to another genus, has to be tested with a material from another locality.

Autekologia

Występowanie geograficzne

Płucki, Wietrznia, Kowala, Miedzianka, and Jabłonna.

Zasięg czasowy

Late K. triangularis and early K. crepida Zones. 

Materiały muzealne

ZPAL: 803 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.