Opis

Diagnosis. — Extremely evolute conch with tabulate venter; simple septum in mature conchs lacking any vaulted areas.

Remarks. — These are clymenias of simplified morphology, thus difficult to diagnose with any newly acquired character (synapomorphy). Despite still incomplete fossil record of their evolution, they seem to represent a rather well-defined clade changing the conch morphology towards being more and more evolute. At least in the lineage of Soliclymenia, some amount of paedomorphism is involved, with diminished size of mature conchs and depressed whorl cross section.

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.