Plants of Leptostrobus Heer (Czekanowskiales) from the Early Cretaceous and Late Triassic of China, with Discussion of the Genus |
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作者姓名: | Xiu-Qun Liu Cheng-Sen Li Yu-Fei Wang |
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作者单位: | Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China |
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摘 要: |
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关 键 词: | 白垩纪 植物学 黄麻 三叠纪 中国 种类学 |
收稿时间: | 2005-04-06 |
修稿时间: | 2005-04-062005-08-23 |
Plants of Leptostrobus Heer (Czekanowskiales) from the Early Cretaceous and Late Triassic of China, with Discussion of the Genus |
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Authors: | Xiu-Qun Liu Cheng-Sen Li Yu-Fei Wang |
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Institution: | Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China |
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Abstract: | Investigation of the Mesozoic seed plant Leptostrobus Heer from the Yangcaogou Formation of the Late Triassic and the Yixian Formation of the Early Cretaceous, Liaoning Province, China, provides new Insight Into Its general morphology and geographical distribution. The materials of L. cancer from the Yixian Formation described herein are later than all the past findings of this species and add to the record of L. cancer during the Early Cretaceous. Based on well-preserved specimens, the specific diagnosis Is slightly emended and the reconstructlon of L. cancer Is perfected. The materials from the Yangcaogou Formation of the Late Triassic are placed in L. spheericus, in addition, we review the history of investigation of the genus Leptostrobus since its establishment in 1876 and discuss the main characteristics of each species. |
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Keywords: | Early Cretaceous Late Triassic Leptostrobus Yangcaogou Formation Yixian Formation |
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