Artiopoda - Phacopida - Cheiruridae
Alternative spelling: Pilekiidae
Parent taxon: Cheiruridae according to F. Perez-Peris et al. 2021
See also Adrain 2011, Edgecombe et al. 1999, Fortey and Bruton 2013 and Whittington et al. 1997
Sister taxa: Acanthoparyphinae, Actinopeltis, Anasobella, Ancyginaspis, Arcticeraurinella, Areia, Areiaspis, Borealaspis, Bornholmaspis, Ceraurinium, Cerauromeros, Cerauropeltis, Ceraurus, Chacomurus, Cheirurinae, Cheirurus, Chiozoon, Contracheirurus, Crotalocephalides, Crotalocephalus, Cyrtometopinae, Cyrtometopus, Deiphon, Deiphoninae, Didrepanon, Eccoptochilinae, Forteyops, Foulonia, Gabriceraurus, Hammannopyge, Hapsiceraurus, Heliomera, Heliomeroides, Hemisphaerocoryphe, Holia, Holotrachelus, Hyrokybe, Junggarella, Kawina, Kolymella, Krattaspis, Ktenoura, Laneites, Lehua, Onycopyge, Osekaspis, Parayoungia, Parisoceraurus, Pateraspis, Patomaspis, Placoparina, Pompeckia, Proromma, Protocerauroides, Pseudocheirurus, Radiurus, Ratinkaspis, Reraspis, Sphaerexochinae, Sphaexerochinae, Stubblefieldia, Sycophantia, Turantyx, Valongia, Whittakerites, Xylabion, Xystocrania, Youngia, Zazvorkaspis, Kinderlania
Subtaxa: Anacheirurus Chashania Courtessolium Demeterops Emsurina Eocheirurus Koraipsis Landyia Macrogrammus Metapilekia Metapliomerops Parapilekia Pilekia Pliomeroides Pseudopliomera Seisonia Sinoparapilekia Sinoparapilekiini Tesselacauda Tienshihfuia Victorispina Yinaspis
Distribution:
• Whiterockian of Argentina (1 collection), Norway (1)
• Arenig of Argentina (1), Australia (1), Canada (1: Newfoundland and Labrador), China (1), Spain (1), the United Kingdom (1)
• Ordovician of Argentina (9), Australia (9), Canada (7: Alberta, Newfoundland, Newfoundland and Labrador, Northwest Territories), China (3), Czechia (4), France (1), Iran (5), Morocco (2), North Korea (1), Norway (2), Spain (3), Sweden (1), the United Kingdom (2), United States (17: Idaho, Nevada, Utah, Vermont)
• Cambrian to Ordovician of the Russian Federation (1)
• Cambrian of Argentina (1)
Total: 76 collections including 90 occurrences