Linogodina sudetica sp. n. from Dzikowiec, the Sudetes (sample Dz-9, Dz-8, Dz-10); specimens ZPAL cXVI/1877,1886, 1878, 1880, 1884, 1881, 1879, 1887 (holotype), 1883, 1876

Diagnoza

High arched elements with flat sharp denticles, M elements with triangularly narrowed base, undenticulated, pointed external process and variable length and orientation of internal process

Porównanie

Because of the unusually wide range of variability it is not certain if truly only one prioniodinid species is represented in the late Famennian of Dzikowiec. However, there seems to be a complete gradation between extreme morphologies of the most characteristic M elements. Also the generic affiliation of the species is uncertain and it may as well belong to Idioprioniodus. In fact, some of its M elements resemble those of Ligonodina pectinata, others Idioprioniodus ruptus sp. n. The most characteristic aspect of most elements of L. sudetica is elongation of their cusps and sharp denticles and relatively short processes.

Autekologia

Występowanie geograficzne

The P. jugosus and D. trigonica Zones at Dzikowiec and possibly Kowala.

Zasięg czasowy

Materiały muzealne

ZPAL: 257 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.