Untitled

Albian-early Paleocene in the Anadyr-Koryakand North Alaska subregions, Part 3: Comparisonof floras and floristic changes across theCretaceous-Paleogene boundary. ( 英 文 ). HermanA B. Stratigraphy and Geological Correlation,2007, 15(5): 516-524Floras characterizing comparable evolutionarystages in the Anadyr-Koryak and North Alaskasubregions of the North Pacific show some essentialdistinctions despite their similarity ingeneral. Factors responsible for appearance oftheir distinctive features were most likely thepaleoclimatic difference between the subregionsand the constrained or even interrupted trans-Beringia migration of plants in particular intervalsof geological history. Floras of both subregionssurvived the Cretaceous-Paleogene boundarycrisis without essential consequences fortheir evolution, and amplitude of floristicchanges across the boundary was not greaterthan by evolutionary changes in the crisis-freeLate Cretaceous. Evolution of the North Pacificfloras near this boundary has been likely controlledby the long-term paleogeographic andpaleoclimatic changes and by plants evolutionand migration.2008040083阿 纳 德 尔 - 科 利 亚 克 和 北 阿 拉 斯 加 亚 地 区 阿 尔比 期 - 早 古 新 世 的 古 植 物 群 比 较 第 二 部 分 北阿 拉 斯 加 亚 地 区 = Comparative paleofloristicsof the Albian-Early Paleocene in the Anadyr-Koryak and North Alaska Subregions, part 2:The North Alaska Subregion. ( 英 文 ). Herman AB. Stratigraphy and Geological Correlation,2007, 15(4): 373-384The Albian-Paleocene phytostratigraphicscheme suggested in this work for the NorthAlaska Subregion of the North Pacific differsfrom the previous ones and includes three phytostratigraphichorizons of subregional extent andfour plant-bearing beds. The scheme is based ondistinguished successive stages in flora evolution,being substantiated by comprehensive data onthe described floral (plant macrofossils) assemblages.As is established, sedimentation environmentsgradually changed during the Albian-Paleogene from the west of the subregion to theeast so that the marine sedimentation and accumulationof sediments in general terminated ineastern areas later than western ones2008040084以 聚 酯 敷 涂 来 提 取 和 处 理 细 薄 碎 裂 的 化 石 角质 层 的 新 转 换 技 术 = A new transfer techniqueto extract and process thin and fragmented fossilcuticle using polyester overlays. ( 英 文 ). KouwenbergL L R; Hines R R; McElwain J C. Reviewof Palaeobotany and Palynology, 2007,145(3-4): 243-248Extraction and chemical processing of fragmentedcuticles from fossil leaves are facilitatedby a new non-destructive technique. Transfer offossil cuticle onto polyester overlays renderswhole-leaf maceration unnecessary. This techniqueis completely safe and extremely easy toapply for the preparation of fragile and fragmentedcuticles, while preserving the fossilspecimen and reducing chemical processing time.2008040085阿 纳 德 尔 - 科 利 亚 克 和 北 阿 拉 斯 加 亚 地 区 阿 尔比 期 - 早 古 新 世 的 古 植 物 群 比 较 第 一 部 分 安纳 德 尔 - 科 利 亚 亚 区 = Comparative paleofloristicsof the Albian-early Paleocene in the Anadyr-Koryak and North Alaska Subregions, Part 1:The Anadyr-Koryak Subregion. ( 英 文 ). HermanA B. Stratigraphy and Geological Correlation,2007, 15(3): 321-332A high-resolution phytostratigraphic schemebased on plant macrofossils is suggested for thefirst time for the Albian and Upper Cretaceousof the Anadyr-Koryak Subregion of the NorthPacific. Seven phytostratigraphic horizons of thesubregion are distinguished based on successivestages in flora evolution substantiated by comprehensivedata on described floral assemblages.2008040086法 国 布 尔 戈 尼 Blanzy–Montceau-les 矿Martenet 点 奥 顿 阶 植 物 群 : 描 述 、 埋 葬 研 究和 古 环 境 意 义 = The Autunian flora of theMartenet site (Blanzy–Montceau-les-Mines,Burgundy, France): Description, taphonomicstudy and palaeoenvironmental implications. ( 法文 ). Bercovici A; Broutin J. Comptes RendusPalevol, 2008, 7(1): 1-16This work presents the first analysis of theMartenet fossiliferous site in the Blanzy – Montceau-les-Minesbasin, as well as a propositionfor transport and fossilisation conditions basedon the sole collection material. Description ofthe megaflora revealed a classical ‘Autunian’flora, out of which 90% is dominated by Walchianconifers. The taphonomical and sedimentologicalprospective based on the collectionspecimens allowed us to evaluate the transportationmodalities of plant remains and to have anidea of the palaeoenvironment surrounding theMartenet fossiliferous site. Fragmentation is presenton most plant remains, suggesting that a fairamount of transport has occurred prior to finaldeposition. This implies that the Martenet fossilsite is the result of plant material accumulationsampled from a broad area. Comparisons donewith previous palaeobotanical studies in otherPermian basins show that even if all Permian26