†subfamily Rhombariinae Cooper 1983 (lamp shell)
Rhynchonellata - Terebratulida - Gibbithyrididae
Full reference: G. A. Cooper. 1983. The Terebratulacea (Brachiopoda) Triassic to Recent: a study of the brachidia (loops). Smithsonian Contributions to Paleobiology 50:1-290
Parent taxon: Gibbithyrididae according to A. Williams et al. 2006
Sister taxa: Carneithyridinae, Gibbithyridinae
Subtaxa: Rhombaria
Type: Rhombaria
Ecology: stationary low-level epifaunal suspension feeder
Distribution: found only at Ivö Klack Brachiopods (Cretaceous of Sweden)