... is dated late Middle—Upper Eocene (upper Lutetian—Bartonian—Priabonian). We describe eight palynological assemblages from the continental Paleogene and Neogene deposits and substantiate the establishment of the Zhuravka, Abrosimov, Beshcheul’, and Tavolga Formations in the boreholes. Three stages...

.../sex/individual identity are conveyed by visual, acoustic, or tactile cues ( Garrick and Lang 1977 ; Garrick et al. 1978 ; Dawbin 1980 ; Herman and Tavolga 1980 ; Gans et al. 1984 ; Napier and Napier 1985 ; Welty and Baptista 1988 ; Cooper and Greenberg 1992 ; Thornbjarnarson and Hernandez 1993...

... ear of teleost fish. Each labyrinth contains three end organs (utricle, lagena, and saccule) formed by an otolith (lapillus, sagitta, and asteriscus) located within an epithelial sac ( Platt and Popper 1981 ). Otolith growth is initiated in embryonic fish by the formation of the core, which...

...: recent lava flows, sea-floor spreading, and the formation of megaplumes , Geology 19 , 771 - 775 . Ferrazzini V. Aki K. (1987) . Slow waves trapped in a fluid-filled infinite...

... ( Gubkin, 1975 ). He divided the coalification process into stages, with generation of different types of oil at each stage and dry gas formation in reservoirs of relatively high thermal maturity ( Gubkin, 1975 ). Many Russian petroleum scientists (V.V. Veber, M.V. Abramovich, V.A. Sokolov, N.B. Vassoevich...

... of Paleozoic and Mesozoic formations was not sufficiently investigated but some evidence of petroliferous properties of Paleozoic sediments was found on the periphery of the West Siberian basin. Later on, interest to Paleozoic reservoirs decayed after the Mesozoic-Cenozoic section had been recognized...