Cephalopoda - Actinocerida - Actinoceratidae
Parent taxon: Actinocerida according to R. E. Crick 1981
See also Kiessling 2003 and Teichert et al. 1964
Sister taxa: Armenoceratidae, Astoceras, Calhounoceras, Carbactinoceratidae, Eldroceras, Georginidae, Gonioceratidae, Gouldoceratidae, Greenlandoceratidae, Hopeioceras, Huroniidae, Jeholoceras, Kobayashiceras, Meitanoceratidae, Ormoceratidae, Parahelenites, Parahelenitidae, Polydesmiidae, Pseudactinoceratidae, Ruedemannoceratidae, Subtofangoceras, Wutinoceratidae, Zerashanoceras
Subtaxa: Actinoceras Ellinoceras Elrodoceras Floweroceras Kochoceras Leurorthoceras Paractinoceras Saffordoceras Troostoceras
Ecology: nektobenthic carnivore
Distribution:
• Carboniferous of the United Kingdom (2 collections)
• Niagaran of United States (3: Indiana, Ohio)
• Silurian of Canada (12: Manitoba, Quebec, Québec), the United Arab Emirates (1), United States (7: Illinois, New York, Wisconsin)
• Uhaku of the Russian Federation (1)
• Fennian of Malaysia (1)
• Arenig of China (8)
• Ordovician of Canada (56: Manitoba, Newfoundland and Labrador, Northwest Territories, Nunavut, Ontario, Quebec, Québec, Saskatchewan), China (3), Estonia (1), Greenland (1), Norway (3), the Russian Federation (1), United States (28: Colorado, Illinois, Iowa, Wisconsin, Kentucky, Michigan, Minnesota, New Mexico, New York, Tennessee, Virginia, Wisconsin, Wyoming)
Total: 128 collections including 177 occurrences