Alternative combinations: Argaster antiqua, Asterias antiqua, Palaeaster (Argaster) antiqua, Palaeaster antiqua, Palaeaster antiquus, Petraster antiqua
Full reference: G. Troost. 1835. Description of a new species of fossil Asterias (Asterias antiqua). Transactions of the Geological Society of Pennsylvania 1:232-235
Belongs to Mesopalaeaster according to C. Schuchert 1915
Sister taxa: Hudsonaster australis, Hudsonaster carectum, Hudsonaster incomptus, Hudsonaster matutinus, Hudsonaster milleri, Hudsonaster narrawayi, Hudsonaster ordovicus, Hudsonaster rugosus, Mesopalaeaster shafferi, Mesopalaeaster intermedius, Mesopalaeaster finei, Mesopalaeaster lanceolatus, Mesopalaeaster proavitus, Mesopalaeaster wilberanus, Mesopalaeaster dubius, Mesopalaeaster parviusculus, Mesopalaeaster cataractensis, Mesopalaeaster granti, Mesopalaeaster bellulus, Mesopalaeaster acuminatus, Mesopalaeaster clarki, Mesopalaeaster primus, Mesopalaeaster complicatus
Type specimen: USNM 39914
Ecology: epifaunal detritivore