original description
Kier, P. M. 1965. Evolutionary trends in Paleozoic echinoids. Journal of Paleontology 39, 436-465.
page(s): 453-456; pl. 55: figs. 1-3 [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): 6 [details] Available for editors 
From editor or global species database
Distribution Texas, U.S.A. [details]
Fossil Range Late Permian [details]
Stratigraphy Bell Canyon Formation [details]
From editor or global species database