†class Strophomenata Williams et al. 1996 (lamp shell)
Parent taxon: Rhynchonelliformea according to S. J. Carlson 2001
Sister taxa: Arzonella, Chileata, Kutorginata, Obolellata, Rhynchonellata, Salanygolinidae
Subtaxa: Billingsellida, Liosomeniidae, Orthotetida, Productida, Strophomenida
Ecology: stationary low-level epifaunal suspension feeder