Trilobita - Harpetida - Harpetidae

Parent taxon: Harpetidae according to P. A. Jell and J. M. Adrain 2003

Sister taxa: Australoharpes, Bohemoharpes, Bowmania, Brachyhipposiderus, Conococheaguea, Entomaspis, Eoharpes, Harpes, Heterocaryon, Hibbertia, Kathrynia, Kielania, Lioharpes, Palaeoharpes, Paraharpes, Scotoharpes

Subtaxa: Dolichoharpes arctica, Dolichoharpes reticulata

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Ecology: fast-moving low-level epifaunal suspension feeder