TABLE 1. Distribution of the mollusc species in the Miocene deposits of the Morskaya 2 site.
| Miocene | ||||
| Sarmatian marine conditions | Maeotian lake-lagoon conditions | |||
| № | Taxa | Layer 1 | Layer 2 | Layer 3 |
| 1. | Blinia cf. angulata (d’Orbigny, 1844) | 1 | ||
| 2. | Gibbula (Sarmatigibbula) podolica (Du Bois de Montpéreux, 1831) | 47 | 8 | |
| 3. | G. (Gibbula) pseudoangulata (Sinzov, 1875) | 2 | 1 | |
| 4. | Gibbula sp. | 70 | ||
| 5. | Barbotella intermedia (Radovanović et Pavlović, 1893) | 6 | ||
| 6. | Hydrobia elongata Eichwald, 1830 | 78 | 1 | |
| 7. | Pseudamnicola nympha (Eichwald, 1850) | 6 | 1 | |
| 8. | Dorsanum ignobile (Kolesnikov, 1932) | 5 | ||
| 9. | D. duplicata opinabile (Kolesnikov, 1932) | 34 | ||
| 10. | D. corbiana (d’Orbigny, 1844) | 7 | ||
| 11. | Dorsanum sp. | 1 | ||
| 12. | Acteocina lajonkaireana (Basterot, 1825) | 12 | 46 | |
| 13 | A. okeni (Eichwald, 1850) | 3 | ||
| 14. | Retusa melitopolitana (Sokolov, 1899) | 77 | 1 | |
| 15. | Viviparus cf. maeoticus (Bogachev and Shishkina, 1919) | 692 | ||
| 16. | V. cf. karaganicus Volkova, 1939 | 12 | ||
| 17. | Bithyniidae indet. (operculum) | 78 | ||
| 18. | Lithoglyphus acutus Cobălcescu, 1883 | 1410 | ||
| 19. | Borysthenia cf. pronaticina (Lindholm, 1932) | 3 | ||
| 20. | Lymnaea sp. | 1 | ||
| 21. | Planorbarius sp. | 1 | ||
| 22. | Anisus cf. spirorbis (Linnaeus, 1758) | 3 | ||
| 23. | Gyraulus cf. acronicus (Férrussac, 1807) | 94 | ||
| 24. | Gyraulus sp. | 1 | ||
| 25. | Helicodiscus (Helicodiscus) roemeri (Andreae, 1902) | 9 | ||
| 26. | Vallonia cf. pulchella (Müller, 1774) | 1 | ||
| 27. | Vertigo sp. | 1 | ||
| 28. | ? Deroceras sp. (Agriolimacidae) | 344 | ||
| 29. | Sphaerium cf. rivicola Lamarck, 1818 | 4 (4r+4l) | ||
| 30. | Pisidium sp. | 4 juv. (3r+4l) | ||
| 31. | Polititapes ponderosa (d’Orbigny, 1844) | 12 (12l+2r) | ||
| 32. | P. vitaliana, (d’Orbigny, 1844) | 49 (38l +49r) | ||
| 33. | Veneridae indet. | 18 (16r+18l) | ||
| 34. | Sarmatimactra fabreana (d’Orbigny, 1844) | 3 (3l+2r) | 1 (1r+1l) | |
| 35. | Ervilia dissita dissita (Eichwald, 1830) | 13 (10l+13r) | ||
| 36. | Obsoletiforma obsoleta ingrata (= Cerastoderma) (Kolesnikov, 1929) | 11 (10l+11r) | ||
| 37. | O. obsoleta obsoleta (Eichwald, 1830) | 12 (8l+12r) | ||
| 38. | Obsoletiforma sp. | 22 | ||
| 39. | Plicatiforma fittoni fittoni (d’Orbigny in Murchison et al., 1845) | 15 (11l+15r) | 17 (5r+17l) | |
| 40. | Cardiidae indet. | 48 | ||
l - left valve; r - right valve; juv. - juvenile
