†Ditremaster (heart urchin)
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Echinoidea - Spatangoida - Hemiasteridae
Parent taxon: Hemiasteridae according to I. D. Lindley 2001
See also Fischer 1966 and Sepkoski 2002
Sister taxa: Cheopsia, Crucibrissus, Distefanaster, Eoagassizia, Hemiaster, Heterolampas, Holcopneustes, Hypsopatagus, Isopetalum, Mecaster, Palhemiaster, Periaster, Psephoaster, Tripylaster, Vomeraster, Washitaster
Subtaxa: none
Ecology: slow-moving shallow infaunal deposit feeder-detritivore
Distribution:
• Pliocene of Papua New Guinea (1 collection)
• Eocene of Spain (2), United States (2: Alabama, Florida)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.