original description
Durham, J. W. 1961a. Miocene echinoids from the Valle Central, Costa Rica. Journal of Paleontology 35, 480-488.
page(s): 481; figs. 1A, 2A, pl. 68: figs. 2-3, 7 [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): 78 [details] Available for editors
From editor or global species database
Distribution Costa Rica [details]
Fossil Range Miocene [details]
From editor or global species database