Parent taxon: Tentaculitida according to O. Vinn et al. 2024
See also Vinn and Motus 2008 and Zhan and Vinn 2007
Sister taxa: Contractenidae, Costatulitidae, Dentiannulatidae, Gotlandellitidae, Hemicricus, Laminitidae, Ljaschenkovites, Longulatus, Multiconidae, Samarites, Sektionitidae, Tentaculitidae, Uniconidae, Vjalovites
Subtaxa: Cornulitidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Carboniferous of China (1 collection), United States (39: Alabama, Indiana, Montana, Oklahoma)
• Devonian to Carboniferous of the United Kingdom (1)
• Devonian of Canada (1: Alberta), the Czech Republic (2), Morocco (1), New Zealand (1), South Africa (1), United States (8: Colorado, Iowa, Missouri, Montana, Ohio, Tennessee)
• Silurian of Canada (6: New Brunswick, Northwest Territories, Nova Scotia, Ontario), the Czech Republic (1), Estonia (1), Ireland (2), Mexico (2), Norway (1), Poland (1), Sweden (12), Ukraine (1), the United Kingdom (15), United States (34: Illinois, Indiana, Iowa, Maryland, New York, Oklahoma, Tennessee, West Virginia, Wisconsin)
• Letna of the Czech Republic (1)
• Ordovician of Canada (5: Ontario, Quebec), China (2), the Czech Republic (4), Estonia (19), France (1), Norway (3), South Africa (1), the United Kingdom (7), United States (86: Indiana, Iowa, Kentucky, Michigan, New York, Ohio, Pennsylvania, Tennessee, Virginia)
• Delamaran of Jordan (1)
Total: 261 collections including 282 occurrences