Opis

Dwubocznie symetryczny aparat szczękowy, niezdolne do osmoregulacji.
Naked body (lamprey- shaped in arboniferous forms). Oral apparatus with phosphatic denticles that armed in pairs both sides of a medial oral fissure. Each denticle composed of a conical crown secreted from outside and a (usually poorly developed) basal filling within the basal cavity.

Synonimy

Zasięg czasowy

Literatura

Dzik, J. 1994a Conodonts of the Mójcza Limestone. In: J. Dzik, E. Olempska, & A. Pisera. Ordovician carbonate platform of the Holy Cross Mountains. Palaeontologia Polonica 53, 43-128.