†suborder Bimarginalina Kesling 1969 (sea star)
Parent taxon: Pustulosida according to G. D. Webster et al. 1999
Sister taxa: Mesopalaeasterinae, Palaeasteraceae, Palaeasteridae, Petrasteridae, Promopalaeasteraceae, Schuchertiidae, Xenasteridae
Subtaxa: none
Ecology: slow-moving low-level epifaunal carnivore