Opis

Elements of the apparatus forming a single transition series of seven element pairs. The presence of a medial element is uncertain.

Synonimy
Belodellida Sweet, 1988

Zasięg czasowy

latest Cambrian – Frasnian

Literatura

Sweet, W.C. 1988. The Conodonta: Morphology, Taxonomy, Paleoecology, and Evolutionary History of a Long-Extinct Animal Phylum. 212 pp. Clarendon Press, Oxford.