Alternative spellings: Pustulosa, Pustulosina
Full reference: W. K. Spencer. 1951. Early Palaeozoic starfish. Philosophical Transactions of the Royal Society of London, series B 235(B623):87-129
Parent taxon: Asteroidea according to D. B. Blake 1989
See also Blake 2018, Owen 1965, Sepkoski 2002, Spencer 1951, Spencer and Wright 1966 and Webster et al. 1999
Sister taxa: Ambuloasteroidea, Arthrasteridae, Cryptozonia, Euasteroidea, Euaxosida, Hadrosida, Hemizonida, Hunsrueckaster, Kermasida, Lepidasterella, Neopalaeasteridae, Petrasteridae, Phanerozoma, Phanerozonida, Platyasterida, Pleuraster, Proactis, Protarthraster, Schuchertiidae, Silicaster, Spinulosacea, Trichotaster, Yarravaster
Subtaxa: Bimarginalina Palaeasteraceae Promopalaeasteraceae
Ecology: slow-moving low-level epifaunal carnivore