†family Harpetidae Hawle and Corda 1847 (trilobite)
Parent taxon: Harpetida according to K. J. McNamara et al. 2009
Sister taxa: Entomaspididae, Harpididae
Subtaxa: Australoharpes, Bohemoharpes, Bowmania, Brachyhipposiderus, Conococheaguea, Dolichoharpes, Entomaspis, Eoharpes, Harpes, Heterocaryon, Hibbertia, Kathrynia, Kielania, Lioharpes, Palaeoharpes, Paraharpes, Scotoharpes
Ecology: fast-moving low-level epifaunal suspension feeder