Echinoidea - Spatangoida - Hemiasteridae
Belongs to Hemiaster according to W. S. W. Kew 1920
See also Clark and Twitchell 1915, Donovan and Clark 2015 and Grant and Hertlein 1938
Sister taxa: Hemiaster (Bolbaster), Hemiaster (Gregoryaster), Hemiaster (Hemiaster), Hemiaster (Holanthus), Hemiaster (Integraster), Hemiaster (Leymeriaster), Hemiaster (Trachyaster), Hemiaster aequisgranensis, Hemiaster alamedensis, Hemiaster amelianus, Hemiaster antillensis, Hemiaster arcolensis, Hemiaster arcticus, Hemiaster atavus, Hemiaster beecheri, Hemiaster bufo, Hemiaster calvini, Hemiaster cholamensis, Hemiaster comanchei, Hemiaster delawarensis, Hemiaster dewalquei, Hemiaster elegans, Hemiaster globulosus, Hemiaster gonzalezmunozi, Hemiaster hattaensis, Hemiaster humphreysanus, Hemiaster kuemmeli, Hemiaster moscovensis, Hemiaster orbignyi, Hemiaster oregonensis, Hemiaster parastatus, Hemiaster paronai, Hemiaster proclivus, Hemiaster regulusanus, Hemiaster sabinal, Hemiaster scutiger, Hemiaster sibiricus, Hemiaster stella, Hemiaster texanus, Hemiaster ungula, Hemiaster welleri, Hemiaster wetherbyi, Hemiaster zululandensis
Type specimen: USNM 31203. Its type locality is Redding, which is in a Turonian marine horizon in the Redding Formation of California.
Ecology: slow-moving shallow infaunal deposit feeder-detritivore
Distribution:
• Cretaceous of United States (4: California collections)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.