Cephalopoda - Ellesmerocerida - Ellesmeroceratidae
Parent taxon: Ellesmerocerida according to D.H. Evans 2011
See also Crick 1981, Flower 1964, Kröger and Landing 2007, Kröger and Landing 2009, Kröger and Mutvei 2005 and Teichert et al. 1964
Sister taxa: Acaroceratidae, Antacaroceras, Balkoceratidae, Bambusoceras, Bathmoceratidae, Cyptendocerina, Cyrtocerinina, Ellesmeroceratina, Eocyckistomiceras, Eothinoceratidae, Huaiheceratidae, Hunyuenoceras, Parapalaeoceras, Phthanoncoceratidae, Plectronoceratidae, Plectronoceratina, Protocycloceratidae, Qiushougouceras, Rioceratidae, Rudolfoceratidae, Shideleroceratidae, Theskeloceras, Vassaroceras, Xiaoshaoceras
Subtaxa: Albertoceras Anhuiceras Annoceras Barnesoceras Bassleroceras Boreoceras Botellusoceras Bridgeoceras Buehleroceras Burenoceras Caseoceras Chabactoceras Chepuloceras Clarkoceras Clelandoceras Conocerina Copiceras Cumberloceras Dakeoceras Diaphoroceras Dongshanoceras Dyscritoceras Ectenoceras Ectenolites Ellesmeroceras Eoclarkoceras Eoectenolites Eorudolfoceras Eremoceras Hemichoanella Keraiaceras Lebetoceras Levisoceras Llanoceras Loxochoanella Meikeloceras Muriceras Oelandoceras Oneoceratidae Oneotoceras Pachendoceras Paradakeoceras Purmanarcoceras Quebecoceras Robsonoceras Shantungendoceras Sinolebetoceras Smithvilloceras Stemtonoceras Tanycameroceras Ventroloboceras Walcottoceras Wolungoceras valcourense Woosteroceras
Ecology: nektobenthic carnivore
Distribution:
• Hunderum of Sweden (2 collections)
• Arenig of Argentina (1), Bolivia (4), China (4)
• Ordovician of Canada (15: Alberta, British Columbia, Newfoundland, Newfoundland and Labrador, Nunavut, Ontario, Quebec), China (2), the Russian Federation (1), South Korea (1), Svalbard and Jan Mayen (1), the United Kingdom (6), United States (116: Alabama, Alaska, Arkansas, Colorado, Illinois, Iowa, Maryland, Michigan, Minnesota, Missouri, New Mexico, New York, Oaklahoma, Oklahoma, Pennsylvania, Tennessee, Texas, Utah, Vermont, Virginia, Wisconsin)
• Canadian of United States (1: Maryland)
• Cressagian of South Korea (1)
• Tremadoc of Argentina (1), China (7), the Russian Federation (1), United States (3: Missouri, Virginia)
• Skullrockian of Canada (1: Alberta), the United Kingdom (2), United States (20: Alabama, New York, Tennessee)
• Taoyuanian of China (1)
• Cambrian of China (3), United States (1: Texas)
Total: 195 collections including 508 occurrences