1. Datsenko, V.A., Zhuravleva, I.T., Lazarenko, N.P., et al., Biostratigraphy and fauna of Cambrian deposits of the north-west of the Siberian platform, Trudy NIIGA, 1968, vol. 155, pp. 1–252.
2. Freeman, G. and Lundelius, J.W., Changes in the timing of mantle formation and larval life history traits in linguliform and craniiform brachiopods, Lethaia, 1999, vol. 32, pp. 197–217.
3. Luchinina, V.A. Korovnikov, I.V., Sipin, D.P., and Fedoseev, A.V., Biostratigraphy of the Upper Vendian–Lower Cambrian section of the river. Sukharikha (Siberian platform), Geol. Geof., 1997, vol. 38, no. 8, pp. 1346–1358.
4. Lüter, C., Anatomy, in Treatise on Invertebrate Paleontology, Pt. H, Brachiopoda, Vol. 6, Boulder, Colorado; Laurence, Kansas: Geol. Soc. Am., Univ. Kansas Press, 2007, pp. 2321–2355.
5. Petrovich, R., Mechanisms of fossilization of the soft-bodied and lightly armored faunas of the Burgess Shale and of some other classical localities, Am. J. Sci., 2001, pp. 683‒726.