World Register of Marine Species (WoRMS)
Orbitoclypeus barkhatovae Zakrevskaya, Beniamovsky, Less & Báldi-Beke, 2011
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Orbitoclypeus barkhatovae Zakrevskaya, Beniamovsky, Less & Báldi-Beke, 2011&nbsp;&#8224;. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1575859 on 2026-08-01
Zakrevskaya, E.; Beniamovsky, V.; Less, G.; Báldi-Beke, M. (2011). Integrated Biostratigraphy of Eocene Deposits in the Gubs Section (Northern Caucasus) with special Attention to the Ypresian/Lutetian Boundary and to the Peritethyan-Tethyan Correlation. Turkish Journal of Earth Sciences. 20: 753–792.
Zakrevskaya, Beniamovsky, Less & Báldi-Beke, 2011