Parent taxon: Endoceratoidea according to A. Pohle et al. 2022
See also Crick 1981, Evans 1993, Evans 1994, Evans 2011, Kröger 2012, Kröger 2013, Kröger and Evans 2011 and Teichert et al. 1964
Sister taxa: Bisonocerida, Colpoceras, Conoceras, Diploceras, Hemiceratites, Intejocerida, Pradoceras, Sidemina
Subtaxa: Baltoceras pusillum Botryceratidae Choreanoceroides Cyrtendoceratidae Endoceratidae Eocameroceras Hoyoceras Narthecoceratidae Pronajaceras Proterocameroceratidae Thylacoceratidae Trinitoceras Winstonoceras Yehlioceras Yorkoceratidae
Ecology: nektobenthic carnivore
Distribution:
• Carboniferous of United States (1: Iowa collection)
• Silurian of Canada (3: Ontario, Quebec), Malaysia (1)
• Ordovician of Argentina (3), Australia (2), Bolivia (1), Canada (65: Manitoba, Mantiboa, Newfoundland and Labrador, Northwest Territories, Nunavut, Ontario, Quebec, Saskatchewan), China (53), the Czech Republic (2), Estonia (18), France (2), Greenland (1), Iran (1), Latvia (2), Lithuania (4), Malaysia (2), Morocco (1), Norway (22), the Russian Federation (4), South Korea (7), Spain (6), Svalbard and Jan Mayen (1), Sweden (19), Thailand (3), the United Kingdom (30), United States (115: Colorado, Illinois, Iowa, Wisconsin, Indiana, Ohio, Iowa, Iowa, Minnesota, Kentucky, Michigan, Minnesota, Missouri, New York, Ohio, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Wyoming)
• Llandeilo of China (9), Ireland (2)
• Chazy of Canada (3: Quebec), United States (12: New York, Vermont)
• Whiterockian of United States (6: California, Utah)
• Dawan of China (13)
• Arenig of Argentina (1), Bolivia (6), China (48), France (1), Sweden (3), United States (2: Oklahoma)
• Cassinian of United States (11: Minnesota, Nevada, New York, Texas, Vermont)
• Jefferson of United States (2: Oklahoma)
• Canadian of United States (6: Alaska, Maryland)
• Jeffersonian of United States (1: Texas)
• Cambrian of China (1)
Total: 496 collections including 735 occurrences