| details |
Valanginian |
Hauterivian |
USSR(Kazakh SSR) |
Aristova,K.E. Spore-pollen complexes of support well Kylandy 1 and its significance to stratigraphy and paleogeography of the Mesozoic of northern Pre Aral. (In: Fossil Spores and Pollen of Plants and their Significance for their Stratigraphic Subdivivision of Oil and Gas Bearing Series of Precambrian, Paleozoic and Mesozoic rocks in the European and Central Asian Regions of the USSR. S.V.Semikhatovoi, V.P.Grichuka, and K.A.Bolkhovitina, editors) |
1967 |