Traits taxon details
original description
Jones, S. T. 1938. Geology of Sierra de la Pena and Paleontology of the Indidura Formation, Coahuila Mexico. Bulletin of the Geological Society of America 49, 69-150. page(s): 133; pl. 13: figs. 1, 9-10 [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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