Traits taxon details
original description
Cooke, C. W. 1955. Some Cretaceous echinoids from the Americas. United States Geological Survey Professional Paper 264 E, 87-112. page(s): 96; pl. 27: figs. 13-19 [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): 49 [details] Available for editors
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