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首次应用孢粉学数据来确定大演化与小演化的速度，并以此解释了俄罗斯东北部（从滨海区南部至楚柯特卡）白垩纪植物群连贯与不连贯的发展阶段。
Palynological data were used for the first time to determine the rate of large and small evolution and to explain the coherent and incoherent development of Cretaceous flora in the northeastern part of Russia, from the southern part of the marina to Chuketka.