Rhynchonellata - Terebratulida - Pseudodielasmatidae
Full reference: G. A. Cooper and R. E. Grant. 1976. Permian Brachiopods of west Texas, V. Smithsonian Contributions to Paleobiology 24:2609-3159
Parent taxon: Dielasmatoidea according to A. Williams et al. 2006
See also Chen and Shi 2006
Sister taxa: Adygellopsis, Angustothyrididae, Antzeilleridae, Athyrorhynchia, Beecheriidae, Dielasmatidae, Gillediidae, Heterelasminidae, Juvavellidae, Paradygella, Proanadyrella, Pseudoharttina, Pseudopygoides, Thyratryaria, Zugmayeriidae, Aulacothyroideidae
Subtaxa: Fredericksolasma Levenolasma Marinurnula Oligothyrina Pleurelasma Pseudodielasma Pseudolowenstamia
Type: Pseudodielasma
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Permian of Afghanistan (1 collection), Armenia (2), Australia (22), China (21), Guatemala (1), Iran (2), Italy (1), Kyrgyzstan (1), New Zealand (6), Pakistan (36), the Russian Federation (12), Tajikistan (11), Ukraine (1), United States (48: Alaska, Arizona, New Mexico, Oklahoma, Texas), Venezuela (2)
• Carboniferous of United States (1: New Mexico)
Total: 168 collections including 218 occurrences