original description
Schenck, H. G. 1928. A new echinoid from the Californian Eocene. Transactions of the San Diego Society of Natural History 5, 195-202.
page(s): 198-199; pl. 24: figs. 1-4 [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): 120 [details] Available for editors
From editor or global species database
Distribution California, U.S.A. [details]
Fossil Range Late Eocene [details]
Stratigraphy Tejon Formation [details]