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 paleoecolo...
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