Washitaster (heart urchin)

Echinoidea - Spatangoida - Hemiasteridae

Parent taxon: Hemiasteridae according to A. G. Fischer 1966

See also Sepkoski 2002

Sister taxa: Cheopsia, Crucibrissus, Distefanaster, Ditremaster, Eoagassizia, Hemiaster, Heterolampas, Holcopneustes, Hypsopatagus, Isopetalum, Mecaster, Palhemiaster, Periaster, Psephoaster, Tripylaster, Vomeraster

Subtaxa: none

Ecology: slow-moving shallow infaunal deposit feeder-detritivore

Distribution:

• Cretaceous of United States (2: New Mexico, Texas collections)

Total: 2 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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