original description
Cooke, C. W. 1941a. Cenozoic regular echinoids of eastern United States. Journal of Paleontology 15, 1-20.
page(s): 17; pl. 2: fig. 15, pl. 4: figs. 1-2, 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): 30 [details] Available for editors
From editor or global species database