New Fossil Liverworts from the Lower Cretaceous of Western Liaoning, China
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New Fossil Liverworts from the Lower Cretaceous of Western Liaoning, China
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The work was funded by Ministry of Science and Technology (2015FY310100), Natural Science Foundation of China (41402023, 41472030), China Geological Survey (DD20160120-04, DD20160345).

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    Abstract:

    Sixteen liverwort specimens collected from the Lower Cretaceous Yixian Formation of Huangbanjigou Village, Liaoning Province, China are studied in this work. The plants are thalloid and preserved in brown arenaceous mudstone as impressions. Based on examinations, the liverworts are assigned to two new genera and five new species: Riccardiothallus palmata sp. nov., Pallaviciniites stricta sp. nov., Pellites latithallus gen. et sp. nov., Conocephalumites hexagonites gen. et sp. nov. and Metzgerites multifidus sp. nov., belonging to five families and five genera. The fossil research indicates that the divergence of families, Aneuraceae and Metzgeriaceae, Pallaviciniaceae and Hymenophytaceae, Pelliaceae and Fossombroniaceae, was in the Lower Cretaceous (125 Ma). The research provides significant additions to the fossil liverwort records in Western Liaoning and offers fossil evidence for studying the classification and evolution of extant liverworts.

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GUO Caiqing, YAO Jianxin, ZHANG Jianwei, WU Pengcheng, LI Chengsen.2017. New Fossil Liverworts from the Lower Cretaceous of Western Liaoning, China[J]. ACTA GEOLOGICA SINICA(English edition),91(5):1542~1552

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  • 收稿日期:2016-08-06
  • 最后修改日期:2017-06-06
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  • 在线发布日期: 2017-10-23
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