Traits taxon details
original description
Nisiyama, S. 1968. The echinoid fauna from Japan and adjacent regions. Part II. Special Papers Paleontological Society of Japan 13, 1-491. page(s): 73-74; pl. 15: figs. 9-10, 17 [details]
basis of record
Kier, P. M. & Lawson, M. H. 1978. Index of living and fossil echinoids 1924-1970. Smithsonian Contributions to Paleobiology 34, 1-182., available online at https://doi.org/10.5479/si.00810266.34.1 page(s): 64 [details] Available for editors 
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