Trilobita - Corynexochida - Styginidae
Parent taxon: Corynexochida according to R. A. Fortey and D. L. Bruton 2013
See also Adrain 2011, Sepkoski 1998 and Whittington et al. 1997
Sister taxa: Brylyella, Cheilocephalidae, Chondagraulos, Corynexochidacea, Corynexochina, Corynexochoidea, Dolichometopidae, Granularapis, Granularaspidae, Hemibarrandiidae, Hunnanocephalus, Illaenidae, Illaenina, Illaenoidea, Leiostegiina, Phillipsinellidae, Xuigiella
Subtaxa: Alceste Altaepeltis Ancyropyge Arctipeltis Australoscutellum Avascutellum Bojoscutellum Boreoscutellum Breviscutellum Bubupeltina Bumastinae Cekovia Ciliscutellum Cornuscutellum Craigheadia Cybantyx Decoroscutellum Delgadoa Dentaloscutellum Dulanaspis Ekwanoscutellum Eoscutellum Exastipyx Failleana Goldillaenoides Goldillaenus Hidascutellum Illaenoides Kirkdomina Kobayashipeltis Kolihapeltis Kosovopeltis Kotysopeltis Lamproscutellum Leioscutellum Ligiscus Liolalax Meitanillaenus Metascutellum Microscutellum Mulciberaspis Octobronteus Paracybantyx Paralejurus Paraphillipsinella Perischoclonus Phillipsinella Planiscutellum Platyscutellum Poroscutellum Promago Protostygina Pseudostygina Quyuania Radioscutellum Raymondaspis Rhaxeros Sangzhiscutellum Scabriscutellum Scutelluidae Scutelluinae Scutellum Spiniscutellum Stygininae Tenuipeltis Theamataspis Thomastus Thysanopeltella Unicapeltis Uraloscutellum Waisfeldaspis Weberopeltis Xyoeax
Ecology: nektobenthic carnivore
Distribution:
• Givetian of Germany (1 collection)
• Devonian of Australia (11), Austria (2), Belgium (17), Canada (11: New Brunswick, Northwest Territories, Nunavut, Quebec), the Czech Republic (48), France (12), Germany (21), Italy (4), Japan (2), Kazakhstan (1), Morocco (38), New Zealand (1), Poland (4), the Russian Federation (11), Spain (6), Tajikistan (1), United States (9: Alaska, Illinois, Iowa, Michigan, Nevada), Uzbekistan (9)
• Silurian to Devonian of United States (1: Oklahoma)
• Silurian of Algeria (1), Australia (9), Austria (1), Canada (58: Northwest Territories, Nunavut, Ontario, Quebec, Yukon, Yukon Territory), China (9), the Czech Republic (21), Greenland (10), Japan (2), Morocco (3), Norway (1), the Russian Federation (3), Sweden (2), Ukraine (4), the United Kingdom (15), United States (42: Alaska, Arkansas, California, Illinois, Indiana, Iowa, Maine, Michigan, New York, Oklahoma, Wisconsin)
• Dobrotivian of the Czech Republic (1)
• Uhaku of Norway (1), Sweden (1)
• Letna of the Czech Republic (1)
• Whiterockian of Canada (18: Newfoundland and Labrador, Northwest Territories, Quebec), Norway (2), United States (9: Nevada, New York, Vermont)
• Chazyan of Canada (13: Newfoundland and Labrador, Northwest Territories)
• Volkhov of Sweden (5)
• Langevoja of Sweden (1)
• Arenigian of China (3)
• Arenig of China (1), Norway (1), Sweden (4)
• Ordovician to Silurian of Canada (1: Québec)
• Ordovician of Argentina (1), Australia (17), Belgium (2), Canada (11: British Columbia, Manitoba, Newfoundland and Labrador, Ontario, Quebec, Québec), China (42), the Czech Republic (11), Estonia (1), Iran (2), Ireland (1), Italy (3), Kazakhstan (8), Norway (40), Poland (1), Portugal (1), the Russian Federation (13), Spain (7), Sweden (29), the United Kingdom (23), United States (27: California, Illinois, Iowa/Wisconsin, Maine, Missouri, Nevada, Oklahoma, Virginia)
Total: 693 collections including 993 occurrences