Trilobita - Asaphida - Asaphidae
Parent taxon: Asaphidae according to C.D. Walcott 1916
Sister taxa: Anataphrus, Asaphellus, Asaphinae, Atopasaphus, Aulacoparia, Australopyge, Basilicus, Bellefontia, Birmanites, Bohemopyge, Borogothus, Brachyaspis, Branisaspis, Burminresia, Ectenaspis, Emanuelaspis, Eoasaphus, Eoisotelus, Fuyunia, Gerasaphes, Gogiura, Griphasaphus, Guohongjunia, Homalopyge, Hunnebergia, Isabelinia, Isotelinae, Isyrakopeltis, Kainisiliellina, Kayseraspis, Klabavia, Kobayashia, Lachnostoma, Lisogorites, Lycophron, Merlinia, Metaptychopyge, Metayuepingia, Nahannia, Neopeltis, Nerudaspis, Nileoides, Ningkianites, Niobides, Niobina, Niobinae, Nobiliasaphinae, Nobiliasaphus, Norasaphus, Norinia, Ogmasaphus, Ogygiinae, Ogyginus, Ogygiocaris, Ogygites, Ogygitoides, Onchometopus, Parabellefontia, Paramegalaspis, Paratamdaspis, Penchiopsis, Plectasaphus, Popovkiaspis, Presbynileus, Priceaspis, Proasaphus, Promegalaspidinae, Proscharyia, Protopresbynileus, Protoptychopyge, Pseudasaphus, Pseudoasaphus, Pseudogriphasaphus, Pseudogygites, Pseudoptyocephalus, Psilocephalina, Ptychopyge, Ptychopyginae, Ptyocephalus, Sanbernardaspis, Stegnopsis, Stenorhachis, Suriaspis, Tchukeraspis, Thysanopyge, Trigonocerca, Trigonocercella, Valdaites, Vogdesia, Xenasaphus, Xenostegium, Zhenganites, Zuninaspis
Subtaxa: Asaphiscus Maryvillia Orria
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Solvan of United States (6: Pennsylvania collections)
• Ordian of Australia (1)
• Delamaran of United States (1: Utah)
• Cambrian of Argentina (1), Canada (10: Newfoundland, Yukon), China (1), United States (22: Georgia, Idaho/ Utah, Montana, Utah, Virginia, Wisconsin, Wyoming, Wyoming-Montana)
Total: 42 collections including 46 occurrences