Scolecodont systematics exemplified by the polychaete Hadoprion cervicornis (Hinde, 1879)

Hadoprion cervicornis (Hinde, 1879) from the Upper Ordovician and Lower Silurian (Cincinnatian to Medinian) replaces four generic and eight specific names: Arabellites cervicornis, A. aciculatus, Oenonites acinaces, Ildraites horridus, I. laeohorridus, I. cervicornis, Nereidavus hamus, and N. alatus. This example illustrates the advantages of a nomenclature in accordance with the ICZN. The authors reject the use of parataxonomy for fossil jawed polychaetes.