original description
Rozanov, A.Y., Missarzhevsky, V.V., Volkova, N.A., Voronova, L.G., Krylov, I.N., Keller, B.M., Koroljuk, I.K., Lendzion, K., Michniak, R., Pychova, N.G. & Sidorov, A.D. (1969). Tommotian stage and the Cambrian lower boundary problem. <em>Trudy Ordena Trudovogo Krasnogo Znameni Geologicheskiy institut.</em> 206: 1-380, 79 figures, 15 tables, 55 plates. [in Russian].
page(s): 138, pl. 4, fig. 18 [details] Available for editors [request]
additional source
Esakova N.V., Zhegallo E.A. (1996). Biostratigrafiya i fauna nizhnego kembriya Mongolii [= Biostratigraphy and fauna of Lower Cambrian of Mongolia]. <em>Moscow: Nauka, 216 pp. [in Russian].</em>
page(s): 160 [details]
From editor or global species database
Type locality Russia, Yakutia, Aldan River [details]