Hemiaster stella Morton 1830 (heart urchin)

Echinoidea - Spatangoida - Hemiasteridae

Alternative combination: Spatangus stella

Synonyms: Hemiaster (Integraster) garumnicus Lambert 1924, Hemiaster garumnicus Lambert 1936, Hemiaster hawkinsi Lambert 1933, Hemiaster incrassatus Clark 1891, Hemiaster madagascariensis Cottreau 1922, Hemiaster punctatus dOrbigny 1856, Hemiaster rutoti Lambert 1911, Hemiaster tamulicus Kossmat 1897, Trachyaster spissus Lambert 1924

Belongs to Hemiaster according to A. Kroh 2001

See also Clark and Twitchell 1915, Cooke 1942 and Cooke 1959

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 beecheri, Hemiaster bufo, Hemiaster californicus, 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 oregonensis, Hemiaster parastatus, Hemiaster paronai, Hemiaster proclivus, Hemiaster sabinal, Hemiaster sibiricus, Hemiaster texanus, Hemiaster ungula, Hemiaster welleri, Hemiaster wetherbyi

Type specimens:

  • Hemiaster stella: ANSP 1491, a test. Its type locality is Timber Creek - Vincentown Fm, which is in a Danian coastal sandstone in the Vincentown Formation of New Jersey.
  • Hemiaster (Integraster) garumnicus:
  • Hemiaster garumnicus:
  • Hemiaster hawkinsi:
  • Hemiaster incrassatus:
  • Hemiaster madagascariensis:
  • Hemiaster punctatus:
  • Hemiaster rutoti:
  • Hemiaster tamulicus:
  • Trachyaster spissus:

Ecology: slow-moving shallow infaunal deposit feeder-detritivore


• Paleocene of Austria (1 collection), Spain (1), United States (3: New Jersey)

• Cretaceous of United States (1: Tennessee)

Total: 6 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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