| 丹东地区中生代地层-古生物 |
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| 引用本文： | 李杰儒,李超英,孙常玲.丹东地区中生代地层-古生物[J].国土资源,1993(3). |
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| 作者姓名： | 李杰儒 李超英 孙常玲 |
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| 作者单位： | 辽宁省地质矿产局区域地质调查队，辽宁省地质矿产局区域地质调查队，辽宁省地质矿产局区域地质调查队 大连 116100，大连 116100，大连 116100 |
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| 摘 要： | 丹东地区小岭组植物化石共9属12种。动物化石腹足类4属6种,叶肢介1属2种。均为首次发现。这些化石的发现为小岭组应属早白垩世而不属侏罗纪,提出了令人信服的证据。同时,阐述了古地理环境和地层特征,并与邻区进行了对比。
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| 关 键 词： | 早白垩世 小岭组 植物化石 腹足类 叶肢介 |
MESOZOIC STRATIGRAPHIC-PALAEONTOLOGY IN DANDONG AREA |
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| Li Jieru Li Chaoying Sun Changling.MESOZOIC STRATIGRAPHIC-PALAEONTOLOGY IN DANDONG AREA[J].Land & Resources,1993(3). |
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| Authors: | Li Jieru Li Chaoying Sun Changling |
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| Abstract: | The paper describes the fossils, first discovered from Xiaoling Formation in Dandong area, which the plant fossils are 19 species in 9 genera: They are Equisetites burejensis (Heer) Krysht, E. ramosus Samyl, Ruffordia gorpperti (Dunker) Seward, Acanthopteris gothanii Sze, onychiopsis elongata (Geyler) Yokoyama, Solenites of. murrayana L. et H. , Sphenobaira? sp. , Pityophyllum lindstroemii Nath. , P. (Pityocladus) kobukense Seward, Podozamites lenceolatus (L. et H. ) Braun,? P. eichwaldii Schimper; Animal fossils are Gasteropod 6 species in 4 genera:there are Valvata (Cinvinna)? sp. , Lioplacodes? sp. , Planobidae sp. , Gyraulus dangdawusuensis Zhu, Gyraulus yinkangensus Yu, Gyraulus sp. , and Conchostraea 2 species 1 genera: There are Yanjiestheria kyongsangensis, Yanjiestheria xinkaicuensis. These further confirm that Xiaoling Formation belongs to Early Cretaceous rather than Jurassic. At the same time the paper expand its palaeogeographic environments and stratigraphic characteristics with correlations with neighbouring area. |
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| Keywords: | Early Cretaceous XiaoLing Formation Plant fossils Gasteropod Conchostraca |
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