Rhynchonellata - Terebratulida - Dielasmatidae
Full reference: A. S. Dagys. 1974. Triassic Brachiopods (Morphology, Classification, Phylogeny, Stratigraphical Significance and Biogeography) 1-387
Parent taxon: Dielasmatinae according to A. Williams et al. 2006
Sister taxa: Adygella, Amygdalocosta, Aspidothyris, Coenothyris, Cruratula, Dareithyris, Dielasma, Dielasmina, Dongbaella, Ectoposia, Elasmata, Fletcherithyris, Pirithyris, Plectelasma, Tibetothyris, Tosuhuthyris, Tunethyris, Whitspakia, Yochelsonia
Subtaxa: Sulcatinella dorsaplana, Sulcatinella gregalis, Sulcatinella incrassata, Sulcatinella opima, Sulcatinella ovata, Sulcatinella semiplana, Sulcatinella sulcata, Sulcatinella waehneri
Type: Sulcatinella sulcata
Ecology: stationary epifaunal suspension feeder