Echinoidea - Camarodonta - Strongylocentrotidae

Parent taxon: Strongylocentrotidae according to S. Nisiyama 1966

See also Sepkoski 2002

Sister taxa: Caenocentrotus, Heliocidaris, Loxechinus, Strongylocentrotus

Subtaxa: Allocentrotus japonicus

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Ecology: epifaunal grazer-deposit feeder

Distribution: found only at Tomiya Shrine (Quaternary of Japan)

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Specimen images are retrieved through the ePANDDA API.