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): 59-61; pl. 13: figs. 6, 8-10, 13-16, pl. 14: figs. 3-8 [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): 66 [details] Available for editors
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