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): 937-938; figs. 6E-I [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): 2 [details] Available for editors
From editor or global species database
Distribution Missouri, U.S.A. [details]
Fossil Range Pennsylvanian [details]
Taxonomic remark Generic assignment tentative. [details]
From editor or global species database