1. Afonin, S.A., Latest Permian palynological assemblage from Vyazniki, European Russia: Stratigraphic and palaeoecological significance in relation to the Permo-Triassic boundary, N. M. Mus. Nat. Hist. Sci., 2005, no. 30, pp. 5–8.
2. Alekseeva, T.V., Rhizoliths in Devonian and Early Carboniferous paleosols and their paleoecological interpretation, Euras. Soil Sci., 2020, vol. 53, no. 4, pp. 405–419.
3. Aref’ev, M.P. and Naugolnykh, S.V., Fossil roots from the Upper Tatarian deposits in the basin of the Sukhona and Malaya Severnaya Dvina rivers: Stratigraphy, taxonomy, and paleoecology, Paleontol. J.,1998, vol. 32, no. 1, pp. 82–97.
4. Aristov, D.S., New Tatarian representatives of the subfamily Chaulioditinae (Insecta: Grylloblattida: Chaulioditidae) from European Russia, Paleontol. J., 2008, vol. 42, no. 1, pp. 32–35.
5. Bajdek, P., Owocki, K., Sennikov, A.G., et al., Residues from the Upper Permian carnivore coprolites from Vyazniki in Russia—key questions in reconstruction of feeding habits, Palaeogeogr., Palaeoclimatol., Palaeoecol., 2017, vol. 482, pp. 70–82.