†subfamily Isotelinae Angelin 1854 (trilobite)

Artiopoda - Asaphida - Asaphidae

Parent taxon: Asaphidae according to O. A. Hoel 1999

See also Corbacho 2014, Harrington et al. 1959, Loch 2007, Neuman and Bruton 1974 and Owen 1981

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, 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: Golasaphus Hoekaspis Isoteloides Isotelus Kierarges Megalaspides Megistaspis Notopeltis

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Ecology: fast-moving low-level epifaunal carnivore

Distribution:

• Silurian of United States (1: Georgia collection)

• Chazyan of Canada (18: Northwest Territories, Ontario, Quebec), United States (54: New York, Tennessee, Vermont)

• Whiterockian of Canada (16: Northwest Territories, Quebec), United States (20: Nevada, New York, Oklahoma, Vermont)

• Hunderum of Sweden (1)

• Valaste of Sweden (1)

• Langevoja of Sweden (8)

• Billingen of Estonia (7), Norway (1), the Russian Federation (10), Sweden (17)

• Arenigian of Argentina (5), China (3), United States (2: Utah)

• Arenig of Argentina (2), Bolivia (6), China (54), France (3), Morocco (1), Norway (1), Sweden (5), United States (3: New York, Vermont)

• Dawan of China (5)

• Canadian of Canada (2: Newfoundland, Newfoundland and Labrador)

• Ordovician of Argentina (56), Australia (4), Belarus (1), Bolivia (4), Canada (99: Alberta, British Columbia, Manitoba, Newfoundland, Newfoundland and Labrador, Northwest Territories, Nunavut, Nunvait, Ontario, Quebec, Québec), China (10), Colombia (1), Estonia (1), France (4), Iran (3), Kazakhstan (1), Latvia (2), Lithuania (1), Morocco (2), Norway (43), the Russian Federation (53), Spain (1), Sweden (70), the United Kingdom (12), United States (925: California, Georgia, Illinois, Illinois, Iowa, Indiana, Iowa, Iowa/Wisconsin, Kentucky, Maryland, Michigan, Minnesota, Missouri, Montana, Nevada, New York, Ohio, Oklahoma, Pennsylvania, Pennsylvania and Virginia, Tennessee, Utah, Virginia, Wisconsin)

• Skullrockian of Canada (1: Newfoundland)

• Ibexian of United States (2: Nevada)

• Cambrian of Australia (8)

Total: 1550 collections including 1709 occurrences

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