Alternative combinations: Belaster ordovicus, Protopalaeaster ordovicus
Full reference: W. K. Spencer. 1916. A monograph of the British Palaeozoic Asterozoa. Monograph of the Palaeontographical Society, London 1915(2):57-108
Belongs to Hudsonaster according to J. Dean Shackleton 2005
Sister taxa: Hudsonaster australis, Hudsonaster carectum, Hudsonaster incomptus, Hudsonaster matutinus, Hudsonaster milleri, Hudsonaster narrawayi, Hudsonaster rugosus, Mesopalaeaster shafferi, Mesopalaeaster intermedius, Mesopalaeaster finei, Mesopalaeaster lanceolatus, Mesopalaeaster proavitus, Mesopalaeaster wilberanus, Mesopalaeaster dubius, Mesopalaeaster antiquus, Mesopalaeaster parviusculus, Mesopalaeaster cataractensis, Mesopalaeaster granti, Mesopalaeaster bellulus, Mesopalaeaster acuminatus, Mesopalaeaster clarki, Mesopalaeaster primus, Mesopalaeaster complicatus
Type specimen: Holotype BMNH E52416a,b
Ecology: epifaunal detritivore