Rhynchonellata - Rhynchonellida - Stenoscismatidae
Parent taxon: Stenoscismatidae according to J. B. Waterhouse 2004
See also Grant 1965 and Williams et al. 2002
Sister taxa: Cyrolexinae, Nantanella, Proatriboniinae, Septacamera, Torynechinae
Subtaxa: Atribonium Camerisma Coledium Liufaia Sedecularia Sedenticellula Stenoscisma Torynechus
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of Afghanistan (1 collection), Australia (22), Azerbaijan (1), Bolivia (15), Cambodia (1), Canada (21: British Columbia, Northwest Territories, Nunavut, Yukon), China (63), East Timor (1), Germany (2), Greece (2), Greenland (29), India (3), Indonesia (10), Iran (1), Italy (5), Japan (7), Laos (1), Lithuania (16), Madagascar (1), Malaysia (6), Mexico (4), Mongolia (2), Myanmar (8), Nepal (3), New Zealand (3), Oman (2), Pakistan (97), the Russian Federation (22), Slovenia (3), Svalbard and Jan Mayen (8), Tajikistan (3), Thailand (10), Tunisia (3), Ukraine (2), the United Kingdom (26), United States (338: Alaska, California, New Mexico, Oregon, Texas)
• Pennsylvanian of Canada (1: Nunavut), China (1), United States (1: Alaska)
• Namurian of Thailand (1)
• Chesterian of United States (10: Arizona, Arkansas, Montana, Oklahoma)
• Carboniferous of Australia (12), Bolivia (1), Canada (3: Nunavut, Yukon), China (2), the Czech Republic (1), India (8), Italy (1), Libya (1), the Russian Federation (5), South Korea (1), Spain (1), Svalbard and Jan Mayen (3), the United Kingdom (12), United States (54: Alaska, Arizona, Arkansas, California, Illinois, Indiana, Kentucky, Missouri, Montana, Nevada, New Mexico, Oklahoma, Texas)
• Mississippian of United States (7: Alaska, Arizona, California, Kentucky)
• Devonian of Canada (5: Alberta, Ontario), France (1), Italy (1), United States (40: Arizona, Indiana, Iowa, Michigan, Missouri, New York)
Total: 915 collections including 1217 occurrences