Hemiaster Agassiz and Desor 1847 (heart urchin)

Echinoidea - Spatangoida - Hemiasteridae

The genus Hemiaster is extant only because its subgenus Holanthus is extant, according to WoRMS and Treatise.

Full reference: L. Agassiz and P. J. E. Desor. 1847. Catalogue raisonné des familles, des genres, et des espèces de la classe des échinodermes. Annales des Sciences Naturelles, Troisième Série, Zoologie 7-8

Parent taxon: Hemiasteridae according to R. Berndt 2003

See also Donovan 1993, Fischer 1966, Henderson 1975, McNamara 1987, Ragaini 1994, Sepkoski 2002, Smith 1991 and Smith 1995

Sister taxa: Cheopsia, Crucibrissus, Distefanaster, Ditremaster, Hernandezaster, Heterolampas, Holcopneustes, Hypsopatagus, Isopetalum, Mecaster, Palhemiaster, Psephoaster, Vomeraster, Washitaster

Subtaxa: Hemiaster (Bolbaster) Hemiaster (Gregoryaster) Hemiaster (Hemiaster) Hemiaster (Holanthus) Hemiaster (Integraster) Hemiaster (Leymeriaster) Hemiaster (Trachyaster) Hemiaster aequisgranensis Hemiaster amelianus Hemiaster antillensis Hemiaster arcolensis Hemiaster arcticus Hemiaster beecheri Hemiaster bufo Hemiaster delawarensis Hemiaster dewalquei Hemiaster gonzalezmunozi Hemiaster hattaensis Hemiaster humphreysanus Hemiaster kuemmeli Hemiaster moscovensis Hemiaster parastatus Hemiaster paronai Hemiaster proclivus Hemiaster sabinal Hemiaster sibiricus Hemiaster stella Hemiaster texanus Hemiaster ungula Hemiaster welleri Hemiaster wetherbyi

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Type: Spatangus bufo

Ecology: slow-moving shallow infaunal deposit feeder-detritivore

Distribution:

• Miocene of Australia (5 collections), Austria (1), Egypt (1), Italy (4)

• Oligocene of Australia (3)

• Eocene of Australia (1), Cuba (2), India (1), Pakistan (1), the United Kingdom (5)

• Paleocene to Eocene of Australia (1)

• Paleocene of Austria (2), Denmark (1), Egypt (1), France (1), Libya (1), Spain (1), United States (6: Alabama, New Jersey)

• Cretaceous to Paleogene of the Netherlands (4)

• Cretaceous of Algeria (1), Antarctica (1), Belgium (8), Brazil (2), the Czech Republic (1), Egypt (23), France (47), Germany (4), Greenland (1), Guatemala (1), India (1), Israel (1), Jamaica (5), Japan (2), Madagascar (5), Mexico (12), Mozambique (4), the Netherlands (6), Oman (2), Peru (6), the Russian Federation (2), South Africa (1), Spain (30), Switzerland (1), Tunisia (1), Turkey (1), USSR (2), the United Arab Emirates (1), the United Kingdom (5), United States (86: Alabama, Arkansas, California, Delaware, Mississippi, Montana, New Jersey, South Dakota, Tennessee, Texas, Utah, Wyoming)

Total: 305 collections including 348 occurrences

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