Rhynchonellata - Atrypida - Septatrypidae
Parent taxon: Septatrypidae according to B. G. Baarli et al. 2022
See also Bassett and Cocks 1974, Jin and Chatterton 1997, Musteikis and Modzalevskaya 2002 and Williams et al. 2002
Sister taxon: Idiospirinae
Subtaxa: Atrypoidea Becscia Cerberatrypa Cromatrypa Septatrypa
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Canada (6: British Columbia, Nunavut collections), China (7), the Czech Republic (5), Morocco (2), the Russian Federation (10), Tajikistan (3), Ukraine (6), United States (5: Alaska, Nevada), Uzbekistan (1)
• Whitwellian of Canada (3: Northwest Territories)
• Jaani of Lithuania (4)
• Silurian of Australia (14), Austria (5), Belarus (3), Canada (102: Northwest Territories, Nunavut, Ontario, Quebec, Québec, Yukon, Yukon Territory), China (20), the Czech Republic (38), Estonia (15), Greenland (2), Kazakhstan (1), Latvia (2), Lithuania (28), Mongolia (2), Morocco (1), the Russian Federation (40), Sweden (3), Tajikistan (2), Ukraine (10), the United Kingdom (1), United States (23: Alaska, Arkansas, California, Iowa, Nevada)
• Ordovician of Australia (1), Canada (1: Quebec)
Total: 366 collections including 517 occurrences