original description
(of Helcionella jacutica Missarzhevsky, 1966 †) Rozanov A.Yu., Missarzhevsky V.V. (1966). Biostratigraphy and fauna of the lower horizons of the Cambrian. <em>Trudy Geologicheskogo Instituta AN SSSR.</em> 148: 1-126. [in Russian]., available online at http://ashipunov.me/shipunov/school/books/rozanov1966_biostr_fauna_nizhn_goroz_kembr.pdf
page(s): 97, pl. 9, figs. 3-4, 7, 12 [details] Available for editors [request]
basis of record
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. II, fig. 4, 10a; pl. IV, fig. 3, 14, 20 [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, pl. 21, fig. 1 [details]
From editor or global species database
Type locality Russia, Yakutia, middle course of the Lena River near Churan settlement; Tommotian stage of the Lower Cambrian [details]