Diagnoza

Porównanie

Conodonts of the genus Siphonodella are the most common in the sample Dz-15 taken from the topmost bed of the Dzikowiec section. Elements P₂ are minute, short-bladed, and sharply denticulated. Elements S seem to differ from associated Neopolygnathus purus elements in their shorter processes. The M elements have undenticulated and  sometimes almost completely reduced ventral processes. The S_3-4 elements are very similar to juveniles of Neopolygnathus, but seem to be separated from them, apart from short ventral processes, in a fan-like arrangement of denticles, usually with the base of the process  projecting externally.

Autekologia

Występowanie geograficzne

Zasięg czasowy

Tournaisian top of the Gattendorfia limestone.

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.