Opis

Diagnosis. — Evolute conchs; septum with marginal lateral vaulting expressed in suture as more or less acute lobe with gentle dorsal slope.

Remarks. — There was suggested that the lineage of Kosmoclymenia originated from Platyclymenia with simple baloon-like septum. The new evidence on the earliest clymenias from the Holy Cross Mountains suggests rather that the marginal vaulting of the septum is an ancestral character inherited after the tornoceratids and that Clymenia and its probable successor Kosmoclymenia are less derived in this respect than Platyclymenia.

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.