Synonym: Uranasteridae Spencer 1916
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 et al. 2016
See also Blake 1989, Owen 1965, Spencer 1916, Spencer 1951 and Spencer and Wright 1966
Sister taxa: Ambuloasteroidea, Arthrasteridae, Cryptozonia, Euasteroidea, Euaxosida, Hadrosida, Hemizonida, Hunsrueckaster, Kermasida, Lepidasterella, Neopalaeasteridae, Phanerozoma, Phanerozonida, Platyasterida, Pleuraster, Proactis, Protarthraster, Pustulosida, Schuchertiidae, Silicaster, Spinulosacea, Trichotaster, Yarravaster
Subtaxa: none
Type: Petraster
Ecology: slow-moving low-level epifaunal carnivore
Distribution: there are no occurrences of Petrasteridae in the database