original description
Vialov, O. & Manouilenko, O. 1939. Les oursins paléogènes du Fergana. Problems of Paleontology, Publications of the Laboratory of Paleontology (Moscow University) 5, 147-176.
page(s): 158-160, 172-174; pl. 2: figs. 2a-c, 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): 63 [details] Available for editors
From editor or global species database
Distribution U.S.S.R. [details]
Fossil Range Alai stage, Eocene [details]