Alternative combinations: Palaeaster wilberanus, Petraster wilberianus
Full reference: F. B. Meek and A. H. Worthen. 1862. Description of new Paleozoic fossils from Illinois and Iowa. Proceedings of the Academy of Natural Sciences, Philadelphia 13:128-148
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 dubius, Mesopalaeaster antiquus, Mesopalaeaster parviusculus, Mesopalaeaster cataractensis, Mesopalaeaster granti, Mesopalaeaster bellulus, Mesopalaeaster acuminatus, Mesopalaeaster clarki, Mesopalaeaster primus, Mesopalaeaster complicatus
Type specimen: unknown
Ecology: epifaunal detritivore