A Whole Plant Herbaceous Angiosperm from the Middle Jurassic of China |
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| Authors: | HAN Gang LIU Zhongjian LIU Xueling MAO Limi Frédéric MB JACQUES WANG Xin |
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| 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 |
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| 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. |
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| Keywords: | seed plant Jurassic herbaceous whole plant angiosperm |
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