Echinoidea - Camarodonta - Echinometridae

Full reference: S. Nisiyama. 1966. The echinoid fauna from Japan and adjacent regions, Part I. Palaeontological Society of Japan Special Papers 11:1-277

Belongs to Echinometra according to S. Nisiyama 1966

Sister taxa: Echinometra insularis, Echinometra lucunter, Echinometra mathaei, Echinometra oblonga, Echinometra vanbrunti, Ellipsechinus prisca

Type specimen: IGPS 73733. Its type locality is Edano coal mine, which is in a Miocene marine horizon in the Kozai Formation of Japan.

Ecology: epifaunal grazer-deposit feeder

Distribution: found only at Edano coal mine

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Specimen images are retrieved through the ePANDDA API.