Two lycopsid plants from the Middle Devonian Haikou Formation of Qujing,Yunnan,China and their evolutionary and paleogeographic implications
1 The Key Laboratory of Orogenic Belts and Crustal Evolution,School of Earth and Space Sciences, Peking University,Beijing 100871,China
2 Laboratory of Geo-specimens Study and Testing,Geological Museum of China,Beijing 100034,China
3 College of Geoscience and Surveying Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China
WANG Jiashu,born in 1996,is a research assistant at the Laboratory of Geo-specimens Study and Testing,Geological Museum of China. He is mainly engaged in studies of Devonian paleobotany and stratigraphy. E-mail:
jiashuwang1996@163.com.
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ZHENG Gaofeng,born in 1999,is a master student of School of Earth and Space Sciences,Peking University. He is mainly engaged in studies of Middle Devonian plants. E-mail: 2201210120@pku.edu.cn.
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