Opis

Diagnosis. — Suture line with secondary umbonal lobe and a tendency to develop additional ventrolateral lobes (VLU1:ID → V L1LU1UID); conch aperture with auricles; relatively high whorl expansion rate.

Remarks. — Early ontogenetic stages of Discoclymenia show that the dorsolateral lobe in advanced forms is homologous to that in Gundolficeras, thus U1 in Ruzhentcev’s notation.

Synonimy

Zasięg czasowy

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.