Traits taxon details
original description
Smiser, J. S. 1936. Cretaceous echinoids from Trans-Pecos, Texas. Journal of Paleontology 10, 449-480. page(s): 459; pl. 62: figs. 7, 16 [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): 37 [details] Available for editors
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