†suborder Bimarginalina Kesling 1969 (sea star)
Parent taxon: Pustulosida according to G. D. Webster et al. 1999
Sister taxa: Palaeasteraceae, Promopalaeasteraceae
Subtaxa: none
Ecology: slow-moving low-level epifaunal carnivore
Distribution: there are no occurrences of Bimarginalina in the database