by Ovsyannikov, G. N., Spiridonov, E. M., Filimonov, S. V.
Published in Moscow University geology bulletin (01.06.2024)

by Spiridonov, E. M., Korotayeva, N. N., Krivitskaya, N. N., Ladygin, V. M., Ovsyannikov, G. N., Putintseva, E. V., Semikolennykh, E. S., Frolova, Yu. V.
Published in Moscow University geology bulletin (01.11.2019)

by Bibikov, D.I, Ovsyannikov, N.G, Filimonov, A.N
Published in Acta zoologica Fennica (1983)