Trilobita - Phacopida - Encrinuridae
Parent taxon: Encrinuridae according to A. W. Owen and R. A. Heath 1989
See also Edgecombe 1994, Nikolaisen 1961 and Owen 1981
Sister taxa: Aegrotocatellus, Alwynulus, Anapliomerella, Atractocybeloides, Avalanchurus, Balizoma, Batocara, Bevanopsis, Celtencrinurus, Curriella, Cybelinae, Dayongia, Dindymeninae, Distyrax, Elsarella, Eodindymene, Langgonia, Lasaguaditas, Lyrapyge, Mackenziurus, Nucleurus, Paracybeloides, Parakailia, Perirehaedulus, Perryus, Plasiaspis, Prophysemataspis, Prostrix, Sinocybele, Staurocephalidae, Staurocephalinae, Stiktocybele, Struszia, Wallacia, Wuoaspis
Subtaxa: Billevittia Brianurus Coronocephalus Cromus Encrinuraspis Encrinuroides Encrinurus Erratencrinurus Fragiscutum Frammia Frencrinuroides Johntempleia Kailia Physemataspis Senticucullus Walencrinuroides
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Devonian of Australia (2 collections), China (1), Tajikistan (1)
• Whitwellian of Canada (1: Northwest Territories)
• Jaani of Estonia (3)
• Niagaran of United States (1: Indiana)
• Silurian to Devonian of Austria (1)
• Silurian of Australia (15), Belarus (2), Canada (121: Manitoba, Northwest Territories, Nunavut, Ontario, Quebec, Québec, Yukon, Yukon Territory), China (39), the Czech Republic (23), Estonia (4), Greenland (4), Ireland (1), Italy (1), Japan (5), Latvia (2), Lithuania (3), Morocco (1), Norway (1), Sweden (15), Tajikistan (4), Ukraine (17), the United Kingdom (56), United States (50: Arkansas, California, Illinois, Indiana, Iowa, Maine, Maryland, Michigan, Nevada, New York, Oklahoma, Wisconsin), Uzbekistan (2)
• Chazyan of Canada (10: Northwest Territories)
• Whiterockian of Canada (3: Northwest Territories, Quebec), United States (4: California, New York, Vermont)
• Arenig of Argentina (1), China (2)
• Ordovician to Silurian of Canada (4: British Columbia, Québec)
• Ordovician of Argentina (11), Australia (15), Belgium (1), Canada (26: Manitoba, Newfoundland, Northwest Territories, Nunavut, Nunvait, Ontario, Quebec), China (9), Estonia (3), Germany (1), Ireland (3), Kazakhstan (1), Latvia (3), the Netherlands (1), Norway (23), the Russian Federation (7), Sweden (5), the United Kingdom (23), United States (39: Illinois, Illinois, Iowa, Iowa/Wisconsin, Minnesota, Nevada, New York, Oklahoma, Virginia, Wisconsin)
Total: 571 collections including 636 occurrences