Trilobita - Phacopida - Pliomeridae

Full reference: H. J. Harrington. 1957. Notes on new genera of Pliomeridae (Trilobita). Journal of Paleontology 31(4):811-812

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

Sister taxa: Anapliomera, Benedettia, Colobinion, Cybelopsinae, Encrinurella, Evropeites, Guizhoupliomerops, Hintzeia, Kanoshia, Obliteraspis, Ovalocephalus, Parapliomera, Perissopliomera, Placoparia, Pliomera, Pliomerella, Pliomeridius, Pliomerina, Pliomerops, Protopliomerella, Protopliomerops, Pseudomera, Quinquecosta, Tesselacauda

Subtaxa: Rossaspis rossi, Rossaspis superciliosa

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Type: Protopliomerops superciliosa

Ecology: fast-moving low-level epifaunal carnivore