Ginkgo Huolinhensis sp.nov.from the Lower Cretaceous of Huolinhe Coal Field,Inner Mongolia,China
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文摘
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A new species,Ginkgo huolinhensis sp.nov.,with well-preserved cuticle from the Lower Cretaceous,Huolinhe Formation of Huolinhe Coal Field in Inner Mongolia,China,was studied morphologically and anatomically.The main characters of the new species are found in the leaves which are deeply dissected with narrow lobes,trichomes developed on both upper and lower epidermal cells,a media papilla developed on the periclinal walls for each cell in upper cuticle,and no trichomes on the cuticle of the petioles.These characters of G.huolinhensis sp.nov.distinguish from the known species of Ginkgo previously reported.This study of the new species is beneficial for the taxonomic research of fossil Ginkgo,and should be helpful for a better understanding the paleoenvironment of Ginkgo living in northeastern China during the Early Cretaceous. |
来源
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Acta Geologica Sinica
,2012,86(1):11-19 【核心库】
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关键词
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new species
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Ginkgo
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Early Cretaceous
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Huolinhe
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Inner Mongolia
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地址
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Research Center of Palaeontology and Stratigraphy,Jilin University, Key Lab for Evolution of Past Life and Environment in NE Asia,Ministry of Education, Changchun, 130026
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语种
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英文 |
文献类型
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研究性论文 |
ISSN
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1000-9515 |
学科
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地质学 |
基金
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国家教育部高等学校学科创新引智计划项目
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文献收藏号
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CSCD:4452990
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