Alternative combination: Palaeaster granti
Full reference: J. W. Spencer. 1884. Niagara fossils, Part 3. Bulletin of the Museum of the University of the State of Missouri 1:52-61
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 antiquus, Mesopalaeaster parviusculus, Mesopalaeaster cataractensis, Mesopalaeaster bellulus, Mesopalaeaster acuminatus, Mesopalaeaster clarki, Mesopalaeaster primus, Mesopalaeaster complicatus
Ecology: epifaunal detritivore