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A Whole Plant Herbaceous Angiosperm from the Middle Jurassic of China
作者姓名:HAN Gang  LIU Zhongjian  LIU Xueling  MAO Limi  Frédéric M.B. JACQUES  WANG Xin
作者单位:1 Palaeontological Center, Bohai University, Jinzhou 121013, Liaoning, China;2 Shenzhen Key Laboratory for Orchid Conservation and Utilization, National Orchid Conservation Center of China and Orchid Conservation & Research Center of Shenzhen, Shenzhen 518114, Guangdong, China;3 State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS, Nanjing 210008, China;4 Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, CAS, Mengla 666303, Yunnan, China
基金项目:This research is supported by the National Basic Research Program of China (973 Program 2012CB821901), Team Program of Scientific Innovation and Interdisciplinary Cooperation, Chinese Academy of Sciences (2013–2015), and National Natural Science Foundation of China (91114201, 41172006) awarded to X.W.; and State Forestry Administration of China (No. 2005–122), Science and Technology Project of Guangdong (No. 2011B060400011), and Special Funds for Environmental Projects of Shenzhen (No. 2013-02) awarded to Z. J. L.. This is a contribution to UNESCO IGCP632.
摘    要:In contrast to woody habit with secondary growth, truthful herbaceous habit lacking secondary growth is restricted to angiosperms among seed plants. Although angiosperms might have occurred as early as in the Triassic and herbaceous habit theoretically may have been well adopted by pioneer angiosperms, pre-Cretaceous herbs are missing hitherto, leaving the origin of herbs and evolution of herbaceous angiosperms mysterious. Here we report Juraherba bodae gen. et sp. nov, a whole plant herbaceous angiosperm, from the Middle Jurassic (>164 Ma) at Daohugou Village, Inner Mongolia, China, a fossil Lagerst?tten that is worldwide famous for various fossil finds. The angiospermous affinity of Juraherba is ensured by its enclosed ovules/seeds. The plant is small but complete, with physically connected hairy root, stem, leaves, and fructifications. The Middle Jurassic age recommends Juraherba as the earliest record of herbaceous seed plants, demanding a refresh look at the evolutionary history of angiosperms.

关 键 词:seed  plant    Jurassic    herbaceous    whole  plant    angiosperm.
收稿时间:8/5/2015 12:00:00 AM
修稿时间:2015/10/20 0:00:00

A Whole Plant Herbaceous Angiosperm from the Middle Jurassic of China
Authors:HAN Gang  LIU Zhongjian  LIU Xueling  MAO Limi  Frédéric MB JACQUES  WANG Xin
Institution:1 Palaeontological Center, Bohai University, Jinzhou 121013, Liaoning, China,1 Palaeontological Center, Bohai University, Jinzhou 121013, Liaoning, China;2 Shenzhen Key Laboratory for Orchid Conservation and Utilization, National Orchid Conservation Center of China and Orchid Conservation & Research Center of Shenzhen, Shenzhen 518114, Guangdong, China,1 Palaeontological Center, Bohai University, Jinzhou 121013, Liaoning, China,3 State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS, Nanjing 210008, China,4 Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, CAS, Mengla 666303, Yunnan, China and 3 State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS, Nanjing 210008, China
Abstract:In contrast to woody habit with secondary growth, truthful herbaceous habit lacking secondary growth is restricted to angiosperms among seed plants. Although angiosperms might have occurred as early as in the Triassic and herbaceous habit theoretically may have been well adopted by pioneer angiosperms, pre‐Cretaceous herbs are missing hitherto, leaving the origin of herbs and evolution of herbaceous angiosperms mysterious. Here we report Juraherba bodae gen. et sp. nov, a whole plant herbaceous angiosperm, from the Middle Jurassic (>164 Ma) at Daohugou Village, Inner Mongolia, China, a fossil Lagerstätten that is worldwide famous for various fossil finds. The angiospermous affinity of Juraherba is ensured by its enclosed ovules/seeds. The plant is small but complete, with physically connected hairy root, stem, leaves, and fructifications. The Middle Jurassic age recommends Juraherba as the earliest record of herbaceous seed plants, demanding a refresh look at the evolutionary history of angiosperms.
Keywords:seed plant  Jurassic  herbaceous  whole plant  angiosperm  
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