Full reference: W. K. Spencer. 1918. A monograph of the British Palaeozoic Asterozoa. Monographs of the Palaeontographical Society, London 1916(3):109-168
Parent taxon: Asteroidea according to D. B. Blake 2018
See also Owen 1965, Sepkoski 2002 and Spencer and Wright 1966
Sister taxa: Ambuloasteroidea, Arthrasteridae, Cryptozonia, Euasteroidea, Euaxosida, Hadrosida, Hemizonida, Hunsrueckaster, Kermasida, Lepidasterella, Neopalaeasteridae, Petrasteridae, Phanerozoma, Phanerozonida, Platyasterida, Pleuraster, Proactis, Pustulosida, Schuchertiidae, Silicaster, Spinulosacea, Trichotaster, Yarravaster
Subtaxa: Protarthraster longimanus
Type: Palaeaster longimanus
Ecology: slow-moving low-level epifaunal carnivore
Distribution: there are no occurrences of Protarthraster in the database
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.