original description
Miller, A. K. 1928. A New Echinoid from the Sundance d West-Central Wyoming. American Journal od Science 5, 143-146.
page(s): 143-146; figs. 1-4 [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): 27 [details] Available for editors
From editor or global species database
Distribution Wyoming, U.S.A [details]
Fossil Range Late Jurassic [details]
Stratigraphy Sundance Formation [details]