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|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Trilobita - Harpida - Harpetidae
It was reranked as Harpes (Eoharpes) by Reed (1914).
It was assigned to Harpes by Reed (1914); to Harpidae by Romano and Henry (1982); to Ptychopariida by Sepkoski (2002); and to Harpetidae by Ebach and McNamara (2002) and Jell and Adrain (2002).
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.