1. Ando, A., Huber, B.T., and Premoli Silva, I., Paraticinella rohri (Bolli, 1959) as the valid name for the latest Aptian zonal marker species of planktonic foraminifera traditionally called bejaouaensis or eubejaouaensis, Cretaceous Res., 2013, vol. 45, pp. 275–287.
2. Baraboshkin, E.Yu., New stratigraphic scheme of Lower Cretaceous deposits of the Kacha–Bodrak interfluve (Southwestern Crimea), Vestn. Mosk. Univ., Ser. 4: Geol., 1997, no. 3, pp. 22–28.
3. Baraboshkin, E.Yu., Guzhikov, A.Yu., Mutterlose, J., Yampolskaya, O.B., Pimenov, M.V., and Gavrilov, S.S., New data on the stratigraphy of the Barremian-Aptian sediments in the Crimean Mountains in connection with the identification of an analogue of Chron M0 in the Verkhorech’e village section, Vestn. Mosk. Gos. Univ., Ser. 4: Geol., 2004, no. 1, pp. 10–20.
4. Bellier, J.-P. and Moullade, M., Lower Cretaceous planktonic foraminiferal biostratigraphy of the western north Atlantic (ODP LEG 171b), and taxonomic clarification of key index species, Rev. Micropaleontol., 2002, vol. 45, no. 1, pp. 9–26.
5. BouDagher-Fadel, M.K., Re-evaluation of the phylogeny of Early Cretaceous planktonic foraminifera (Praehedbergellidae), Cretaceous Res., 1996, vol. 17, pp. 767–771.