Siphonodella. sp. cf. S. isosticha (Cooper, 1939) from the Tournaisian Wapnica beds of Dzikowiec.

Diagnoza

Almost all mature specimens show the second posterior roshal ridge which runs parallel to the margin (unlike the first one that is directed almost transversely to the platform margin), usually forming only a ramp in the dorsal part of the element.

Porównanie

Autekologia

Występowanie geograficzne

Zasięg czasowy

Materiały muzealne

ZPAL

Literatura

Dzik, J. 1997. Emergence and succession of Carboniferous conodont and ammonoid communities in the Polish part of the Variscan sea. Acta Palaeontologica Polonica 42, 57-170.