†Washitaster (heart urchin)
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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
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.