Rhynchonellata - Spiriferida - Choristitidae
Parent taxon: Spiriferoidea according to A. Williams et al. 2006
See also Carter and Poletaev 1998, Shen et al. 2003 and Waterhouse 2004
Sister taxa: Aulidospiridae, Imbrexiidae, Reticulariacea, Spiriferellidae, Spiriferidae, Trigonotretidae
Subtaxa: Angiospiriferinae Choristitinae Tangshanellinae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of Australia (2 collections), Austria (2), Cambodia (1), Canada (4: Nunavut, Yukon), China (52), India (1), Japan (6), Laos (1), Malaysia (3), Mongolia (1), Pakistan (16), the Russian Federation (12), Slovenia (1), Thailand (7), United States (1: Alaska), Vietnam (1)
• Carboniferous to Permian of United States (2: California)
• Carboniferous of Canada (9: Nunavut, Yukon), China (12), Egypt (5), India (8), Italy (1), Malaysia (2), Nepal (1), Pakistan (1), the Russian Federation (8), South Korea (4), Spain (1), Ukraine (1), the United Kingdom (31), United States (19: Alaska, California, Nevada, Utah, Washington, Oregon, Idaho, Montana, Nevada, Utah, California, Wyoming)
Total: 216 collections including 274 occurrences