Rhynchonellata - Orthida - Orthidae
Full reference: C. D. Walcott. 1905. Cambrian Brachiopoda with descriptions of new genera and species. Proceedings of the United States National Museum 28(1395):227-337
Parent taxon: Orthis according to C. D. Walcott 1905
See also Henningsmoen 1958, Sepkoski 2002, Walcott 1912 and Williams et al. 2000
Sister taxa: Orthis (Finkelnburgia), Orthis acuminata, Orthis australis, Orthis berthoisi, Orthis biforata, Orthis biloba, Orthis bilobata, Orthis callactis, Orthis christianae, Orthis cypha, Orthis davidsoni, Orthis expansa, Orthis gwalia, Orthis intercostata, Orthis kreklingensis, Orthis laticostata, Orthis perveta, Orthis piger, Orthis reversa, Orthis ribeiroi, Orthis spinigera, Orthis subalata, Orthis subvulvaria, Orthis testudinaria, Orthis tulliensis
Subtaxa: Orthis (Orusia) eurekensis
Ecology: stationary epifaunal suspension feeder
Distribution: there are no occurrences of Orthis (Orusia) in the database