Rhynchonellata - Rhynchonellida - Pontisiidae
Parent taxon: Wellerelloidea according to A. Williams et al. 2002
Sister taxa: Allorhynchidae, Amphipellidae, Petasmatheridae, Sinorhynchiidae, Wellerellidae
Subtaxa: Acolosiinae Pontisiinae
Type: Pontisia
Ecology: stationary epifaunal suspension feeder
Distribution:
• Jurassic of Bulgaria (1 collection)
• Triassic of China (25), Kazakhstan (1), the Russian Federation (4)
• Permian of Armenia (1), Azerbaijan (6), China (165), Guatemala (1), Iran (11), Italy (3), Malaysia (1), Mexico (1), Pakistan (1), Thailand (9), Turkey (1), United States (240: Arizona, Nevada, New Mexico, Texas), Venezuela (4)
• Carboniferous of Canada (2: Nunavut), United States (6: New Mexico, Texas)
Total: 483 collections including 643 occurrences