Traits taxon details
original description
Spreng, A. C. & Howe, W. B. 1963. Echinoid jaws from the Mississippian and Pennsylvanian of Missouri. Journal of Paleontology 37, 931-938. page(s): 936; figs. 6A-B [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): 5 [details] Available for editors
From editor or global species database
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