original description
Cooke, C. W. 1942. Cenozoic irregular echinoids of the Eastern United States. Journal of Paleontology 16, 1-62.
page(s): 9; pl. 2: figs. 1-3 [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): 53 [details] Available for editors
From editor or global species database
Distribution U.S.A [details]
Fossil Range Late Eocene [details]
From editor or global species database