Parent taxon: Spiriferidina according to A. Williams et al. 2006
Sister taxa: Adolfioidea, Ambocoelioidea, Cyrtioidea, Cyrtospiriferoidea, Delthyridacea, Martinioidea, Paeckelmanelloidea, Spirifera paucicostata, Spirifera trapezoidalis, Spirifera vespertilio, Spiriferoidea, Theodossioidea
Subtaxa: Alphaneospiriferidae Brachythyrididae Brachythyridinidae Skelidorygmidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of Afghanistan (2 collections), Australia (2), Canada (5: British Columbia, Nunavut, Yukon), China (8), Japan (3), Laos (1), New Zealand (4), Pakistan (10), the Russian Federation (5), Slovenia (1), Thailand (6), United States (3: Alaska)
• Carboniferous of Australia (45), Canada (19: Alberta, Northwest Territories, Nunavut, Yukon), China (4), France (1), Ireland (4), Libya (1), Pakistan (1), the United Kingdom (19), United States (60: Alaska, Arizona, Arkansas, California, Idaho, Illinois, Indiana, Iowa, Kentucky, Missouri, Montana, New Mexico, Oklahoma, Texas, Utah)
• Devonian of Canada (1: Alberta), China (1), United States (1: New Mexico)
Total: 207 collections including 238 occurrences