Traits taxon details
original description
Nisiyama, S. 1966. The Echinoid Fauna from Japan and adjacent Regions. Part I. Paleontological Society of Japan, Special Papers 11, i-ii, 1-277 . page(s): 258-260; pl. 8: figs. 4, 10-14, pl. 9: figs. 1-2, 4-6 [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): 47 [details] Available for editors 
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