Traits taxon details
original description
Eaton, J. E., Grant, U. S. & Allen, H. B. 1941. Miocene of Caliente Range and Environs, California. Bulletin of the American Association of Petroleum Geologists 25, 193-262. page(s): ; pl. 6: fig. 5 and plate explanation [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): 70 [details] Available for editors 
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