original description
Kier, P. M. 1958a. New American Paleozoic Echinoids. Smithsonian Miscellaneous Collections 135, 1-26.
page(s): 12-14; figs. 6-10, pl. 5B [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): 4 [details] Available for editors
From editor or global species database