Traits taxon details
original description
Tanaka, K. & Okubo, M. 1954. On some echinoids from the Paleo-Cretaceous of the Yuasa District in the Kii Peninsula and of the Yatsushiro District in Kyushu. The Journal of the Geological Society of Japan, new series 60, 215-227. page(s): 220-221; pl. 7: fig. 4 [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): 101 [details] Available for editors
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