Strophomenata - Productida

Full reference: G. A. Cooper and R. E. Grant. 1975. Permian Brachiopods of West Texas, III. Smithsonian Contributions to Paleobiology 19:795-1921

Parent taxon: Richthofenioidea according to A. Williams et al. 2000

Sister taxa: Cyclacanthariidae, Gemmellaroiidae, Richthofeniidae

Subtaxa: Hercosestria, Hercosia, Neorichthofenia, Sicularia, Strophorichthofenia

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Type: Hercosia

Ecology: stationary low-level epifaunal suspension feeder