Trilobita - Asaphida - Asaphidae
Parent taxon: Asaphidae according to A. W. Owen and D. L. Bruton 1980
See also Dean 1983, Harrington and Leanza 1957, M'Coy 1849, Phleger 1933 and Whittington 1941
Sister taxa: Anataphrus, Asaphellus, 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, Metaptychopyge, Metayuepingia, Nahannia, Neopeltis, Nerudaspis, Nileoides, Ningkianites, Niobides, Niobina, Niobinae, 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, Suriaspis, Tchukeraspis, Thysanopyge, Trigonocerca, Trigonocercella, Valdaites, Vogdesia, Xenasaphus, Xenostegium, Zhenganites, Zuninaspis
Subtaxa: Asaphus Lonchobasilicus Ogygitella Pseudobasilicus Pseudomegalaspis
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Dobrotivian of Portugal (1 collection)
• Uhaku of Belarus (2), Latvia (1), Lithuania (2), Norway (7), the Russian Federation (3), Sweden (11)
• Chazyan of United States (15: New York)
• Volkhov of Lithuania (3), the Russian Federation (32), Sweden (2)
• Hunderum of Sweden (3)
• Valaste of Sweden (7)
• Langevoja of Sweden (4)
• Dawan of China (2)
• Arenigian of the Russian Federation (1)
• Arenig of Argentina (1), China (12), the Russian Federation (1), Sweden (1)
• Ordovician of Argentina (7), Australia (10), Belarus (3), Canada (1: Manitoba), China (11), Estonia (7), Finland (1), Latvia (3), Lithuania (10), Norway (39), Poland (1), the Russian Federation (24), Sweden (101), the United Kingdom (1)
Total: 330 collections including 392 occurrences