Artiopoda - Ptychopariida - Nepeidae
Parent taxon: Ptychopariida according to C. J. Bentley et al. 2006
See also Adrain 2011 and Jell and Adrain 2002
Sister taxa: Acrocephalitidae, Alokistocaridae, Amphorella, Atratebiinae, Bifodina, Bolaspididae, Bulnibarbi, Bvalbardites, Catillicephalidae, Chondrastaulina, Chuangiformis, Cliffiidae, Conococheaquea, Conocoryphidae, Conokephalinidae, Crepicephalidae, Diceratocephalidae, Elviniidae, Harpina, Indiligens, Jamrogiidae, Kazelina, Kingstoniidae, Kirengelia, Lisaniidae, Lonchocephalidae, Lorenzellidae, Marjumiidae, Meniscocorphye, Meniscocoryphe, Menomoniidae, Neoanomocerella, Norwoodiidae, Olenina, Onchonotopsidae, Papyriaspididae, Phylacteridae, Plethopeltidae, Proasaphiscidae, Propeltura, Ptychopariidae, Ptychopariina, Ptychoparoides, Raymondinidae, Shumardiidae, Solenopleuracea, Solenopleuridae, Tricrepicephalidae, Xianquianaspis, Yuehsieszella
Subtaxa: Ferenepea Folliceps Loxonepea Nepea Penarosa Vicnepea Xenocheilos
Type: Nepea
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Cambrian of Antarctica (1 collection), Australia (6), Canada (2: Alberta), New Zealand (1), United States (24: Arkansas, Missouri, Nevada, Pennsylvania, Texas)
Total: 34 collections including 36 occurrences