Parent taxon: Tentaculitida according to O. Vinn et al. 2025
See also Vinn and Motus 2008, Vinn et al. 2024 and Zhan and Vinn 2007
Sister taxa: Contractenidae, Costatulitidae, Dentiannulatidae, Gotlandellitidae, Hemicricus, Laminitidae, Ljaschenkovites, Longulatus, Microconchida, 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), Czechia (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), Czechia (1), Estonia (2), 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 Czechia (1)
• Ordovician of Canada (5: Ontario, Quebec), China (2), Czechia (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)
• Cambrian of Jordan (1)
Total: 262 collections including 283 occurrences