original description
Faas, A. V. 1941. Echinoidea. Pp. 72-75 in L. Librovitch (ed.) The Atlas of the Guide Forms of the Fossil Faunas of the U.S.S.R. Volume IV. Lower Carboniferous Moscow/Leningrad.
page(s): 73-74; figs. 6-8, pl. 10: figs. 6-8 [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