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首页> 外文期刊>Journal of Asian earth sciences >Palaeobotany of Gondwana basins of Orissa State, India: A bird's eye view
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Palaeobotany of Gondwana basins of Orissa State, India: A bird's eye view

机译:印度奥里萨邦冈瓦纳盆地古植物:鸟瞰图

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摘要

Gondwana basins of Orissa State constitute a major part of the Mahanadi Master Basin. These Gondwana sediments, ranging from Asselian to Albian in age, contain remnants of three basic floral assemblages i.e. Glossopteris Assemblage, Dicroidium Assemblage and Ptilophyllum Assemblage which can be recognized through the Permian, Triassic and Early Cretaceous, respectively. The megafloral assemblages of different basins of this state are discussed briefly. This report mainly deals with the plant species diversification in different lithological formations and the development of flora in the Gondwana basins of Orissa. A number of successive megafloras are recognized. Among those, leaves are the dominant part of the preserved flora, followed by fruits and roots. No wood parts are preserved in the major basins. These pre-angiospermic floras have been systematically analyzed to depict the evolutionary trends, and palaeofloristics of these basins. The distribution of plant fossils in different formations of these basins depicts provincialism in Gondwana flora within the Orissa.
机译:奥里萨邦的冈瓦纳盆地构成了马哈纳迪主盆地的重要组成部分。这些冈瓦纳沉积物的年龄从阿塞拜疆到阿尔比亚不等,包含三种基本的花序组合的残余物,即可以通过二叠纪,三叠纪和早白垩纪识别的格罗佩蒂斯组合,Dicroidium组合和Ptilophyllum组合。简要讨论了该州不同盆地的大植物组合。该报告主要涉及奥里萨邦冈瓦纳盆地不同岩性地层中植物物种的多样性和植物区系的发展。认识到许多连续的大植物。其中,叶子是保存的菌群的主要部分,其次是果实和根。在主要盆地中没有保留木质部分。已经对这些血管形成前的植物区系进行了系统分析,以描绘这些盆地的演化趋势和古植物区系。这些盆地不同地层中植物化石的分布描绘了奥里萨邦冈瓦纳植物区系的省性。

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