Rhynchonellata - Terebratulida - Dielasmatidae

Full reference: D. L. Sun and S. L. Ye. 1982. Middle Triassic brachiopods from the Tosu Lake area, central Qinghai. Acta Palaeontologica Sinica 21(2):153-173

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, Sulcatinella, Tibetothyris, Tunethyris, Whitspakia, Yochelsonia

Subtaxa: Tosuhuthyris lens, Tosuhuthyris obliquus, Tosuhuthyris sulcus

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Type: Tosuhuthyris sulcus

Ecology: stationary epifaunal suspension feeder