†Rugicostella (lamp shell)
Strophomenata - Productida - Aulostegidae
Parent taxon: Institellinae according to A. Williams et al. 2000
Sister taxa: Costellarina, Craspedona, Glyptosteges, Institella, Institina, Licharewiconcha, Polymorpharia, Retroplexus, Sinuatella
Subtaxa: none
Ecology: stationary low-level epifaunal suspension feeder