Echinoidea - Spatangoida

PaleoDB taxon number: 144560

Parent taxon: Toxasteridae according to A. Morishita 1964

Sister taxa: Adytaster, Aphelaster, Douvillaster, Enallopneustes, Heteraster, Isaster, Macraster, Mokotibaster, Polydesmaster, Toxaster

Subtaxa: Enallaster obliquatus, Enallaster texanus, Enallaster yuasensis

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Ecology: slow-moving shallow infaunal deposit feeder-detritivore