| 辽宁铁法盆地早白垩世植物群中的真蕨植物新材料及其原位孢子 |
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| 引用本文： | 邓胜徽.辽宁铁法盆地早白垩世植物群中的真蕨植物新材料及其原位孢子[J].地球科学,1992(1). |
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| 作者姓名： | 邓胜徽 |
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| 作者单位： | 中国地质大学 北京 |
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| 摘 要： | 铁法植物群产于辽宁北部铁法盆地下白垩统小明安碑组含煤地层中。该植物群由45属79种组成。真蕨是其中最繁盛的类别,计15属29种,占植物群种数的36.7％,并且有较高的分异度,覆盖了9个科别,在我国同期植物群中很有特色。本文在形态对比和原位孢子囊、孢子研究的基础上建立了Coniopteris longpinnate sp.nov.,Dryopterites triangularis sp.nov.,Asplenivm tiefanvm sp.nov.3个新种,还对保存了生殖羽片的其它8种真蕨作了原位孢子分析,大大提高了这些属种的研究程度。
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| 关 键 词： | 早白垩世 真蕨植物 原位孢子 铁法盆地 辽宁省 |
NEW MATERIAL OF FILICOPSIDA OF THE EARLY CRETACEOUS FLORA FROM TIEFA BASIN , LIAONING PROVINCE |
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| Deng Shenghui.NEW MATERIAL OF FILICOPSIDA OF THE EARLY CRETACEOUS FLORA FROM TIEFA BASIN , LIAONING PROVINCE[J].Earth Science-Journal of China University of Geosciences,1992(1). |
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| Authors: | Deng Shenghui |
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| Abstract: | The Tiefa flora ,contained in coal -bearing strata of the Xiaoming' anbei Formation (Early Cretaceous in age ), consists of 79 species belonging to 45 genera . Filicopsida , the largest group of the flora , is composed of 29 species including 9 families , which amount to 36.7% of the flora . Dicksoniaceae of 8 species is the most dominant family . Among all members of Filicopsida , Acanthopteris gothani Sze is the most abundant species . The paper also s! udies the sporangia and spores in situ of 11 species including the new species . |
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| Keywords: | Early Cretaceous Filicopsida spore in situ Tiefa Basin Liaoning Prov- ince |
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