†subfamily Costuloplicinae Waterhouse 2004 (lamp shell)
Rhynchonellata - Spiriferida - Trigonotretidae
Full reference: J. B. Waterhouse. 2004. Permian and Triassic stratigraphy and fossils of the Himalaya in northern Nepal. Earthwise 6:1-259
Parent taxon: Trigonotretidae according to J. B. Waterhouse 2004
Sister taxa: Neospiriferinae, Trigonotretinae
Subtaxa: Costuloplica
Ecology: stationary epifaunal suspension feeder
Distribution: