Artiopoda - Asaphida - Asaphidae
Parent taxon: Asaphidae according to Z. Q. Zhou and Z. Y. Zhou 2019
See also Fortey 1975, Hoel 1999 and Neuman and Bruton 1974
Sister taxa: Anataphrus, Asaphellus, Asaphinae, Atopasaphus, Aulacoparia, Australopyge, Basilicus, Bellefontia, Birmanites, Bohemopyge, Borogothus, Brachyaspis, Branisaspis, Burminresia, Delphasaphus, Ectenaspis, Ekeraspis, Emanuelaspis, Eoasaphus, Eoisotelus, Fuyunia, Gerasaphes, Gogiura, Griphasaphus, Guohongjunia, Homalopyge, Hunnebergia, Isabelinia, Isotelinae, Isyrakopeltis, Kainisiliellina, Kayseraspis, Klabavia, Kobayashia, Lachnostoma, Lisogorites, Lycophron, Metaptychopyge, Metayuepingia, Nahannia, Neoasaphus, Neopeltis, Nerudaspis, Nileoides, Ningkianites, Niobides, Niobina, Nobiliasaphinae, Nobiliasaphus, Norasaphus, Norinia, Ogmasaphus, Ogygiinae, Ogyginus, Ogygiocaridinae, Ogygiocarinae, 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, Subasaphus, Suriaspis, Tchukeraspis, Thysanopyge, Trigonocerca, Trigonocercella, Valdaites, Vogdesia, Xenasaphus, Xenostegium, Zhenganites, Zuninaspis
Type: Niobe
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Chazyan of Canada (3: Newfoundland and Labrador collections)
• Whiterockian of Canada (11: Newfoundland and Labrador), United States (2: Nevada, Utah)
• Langevoja of Sweden (2)
• Hunderum of Sweden (2)
• Billingen of Estonia (2), Norway (1), the Russian Federation (2), Sweden (10)
• Arenig of China (1), France (2), Greenland (1), Norway (1), Sweden (6)
• Arenigian of China (3)
• Ordovician of Argentina (2), Canada (2: Alberta, Yukon), China (17), Colombia (1), Czechia (1), France (5), Iran (1), Ireland (2), Norway (27), the Russian Federation (14), Sweden (26), the United Kingdom (3), United States (14: Alaska, Idaho, Nevada, New York, Utah, Virginia)
• Taoyuanian of China (1)
• Cambrian to Ordovician of Norway (1), the Russian Federation (2)
• Cambrian of Australia (2), China (11), Kazakhstan (5), Norway (1), the Russian Federation (6), Sweden (1), Türkiye (1)
Total: 195 collections including 237 occurrences