Echinoidea - Exocycloida

Parent taxon: Exocycloida according to W. S. W. Kew 1920

See also Clark and Twitchell 1915 and Grant and Hertlein 1938

Sister taxon: Spatangina

Subtaxa: none

Ecology: epifaunal grazer-deposit feeder

Distribution: there are no occurrences of Clypeastrina in the database

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