Traits taxon details
original description
Nisiyama, S. 1950b. Fossil Echinoidea from the Miyako Cretaceous. Short Papers of the Institute of Geology and Paleontology Tohoku University (Sendai) 2, 29-38. page(s): 35-36; figs. 1-3, pl. 4: figs. 8-9 [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): 91 [details] Available for editors
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