Hemipatagus argutus Clark and Twitchell 1915 (heart urchin)

Echinoidea - Spatangoida - Loveniidae

Alternative combination: Maretia arguta

Full reference: W. B. Clark and M. W. Twitchell. 1915. The Mesozoic and Cenozoic Echinodermata of the United States. United States Geological Survey Bulletin 54:1-341

Belongs to Hemipatagus according to W. B. Clark and M. W. Twitchell 1915

See also Cooke 1942, Cooke 1959 and Kroh 2007

Sister taxa: Hemipatagus bandaensis, Hemipatagus bundensis, Hemipatagus calvimontanus, Hemipatagus cartagensis, Hemipatagus desmoulinsi, Hemipatagus duncani, Hemipatagus ficheuri, Hemipatagus gauthieri, Hemipatagus girundicus, Hemipatagus grignonensis, Hemipatagus guebhardi, Hemipatagus hispanica, Hemipatagus hoffmanni, Hemipatagus marianii, Hemipatagus martensii, Hemipatagus nicoleti, Hemipatagus ocellatus, Hemipatagus pellati, Hemipatagus regiomontanus, Hemipatagus sambiensis, Hemipatagus soubellensis, Hemipatagus subrostratus, Hemipatagus tenuis, Hemipatagus tuberculatus

Type specimen: USNM 141107, a test

Ecology: slow-moving shallow infaunal deposit feeder-detritivore


• Eocene of United States (4: Mississippi collections)

Total: 4 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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