Олигоценовые комплексы позвоночных Центр Казахстан

E.G. Kordikova. 1994.
Oligocene vertebrate assemblages in central Kazakhstan: faunas, biogeography and paleoecology. -
Historical Biology, 8, 1-4, 191-208, 1994.[International Journal of Paleobiology, 1994, volume 8, 1-4: 191-208]

https://doi.org/10.1080/10292389409380477
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Abstract
The history of research in Oligocene paleozoology of Central Kazakhstan is described.

Continental Oligocene strata may be recognized on the basis of different Oligocene fossil vertebrates, taking into account the stratigraphic occurrence of mammal genera and species, their belonging to subdivisions of the General Stratigraphic Scale as well as statistical determination of assemblage formation time.

At least two stratigraphic levels occur in this region. These are: Saryin (Myneskesuyek, Mogila Saty localities), the lower part of Chelkarnura (Shintuzsay) Svitas (upper half of the Lower Oligocene—Upper Oligocene); and the upper part of Chelkarnura (Chelkar-Teniz) and Betpakdala (Kyzyl-Kak) Svitas (Upper Oligocene). Apparently the Chelkar-Teniz vertebrate assemblage originated in several stages. They require future studies of stratigraphic position of fossils.

Origin and ways of migration of mammalian genera from the Oligocene faunistic assemblages of Central Kazakhstan are discussed.

A preliminary paleoecological study suggests that animals of open and rarefied landscapes dominated in the Myneskesuyek region, the faunistic assemblage of which appears to have been the most ancient. Vertebrate inhabitants of partly open and open, as well as forest habitats probably were present in Chelkar-Teniz. Animals primarily of forest and scattered woodland dwellers predominated in the Kyzyl-Kak locality.