Traits taxon details
original description
Stephenson, L. W. (1941). The larger invertebrate fossils of the Navarro Group of Texas (exclusive of corals and crustaceans and exclusive of the fauna of the Escondido Formation). <em>The University of Texas Publication.</em> 4101: 1-641. page(s): 62-63; pl. 5: figs. 4-7, pl. 6: figs. 5-6 [details] Available for editors
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): 91 [details] Available for editors
From editor or global species database
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