Solenites (Czekanowskiales) from the Late Mesozoic Jehol Biota of Southeastern Jilin, China and its Paleoclimatic Implications
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This study was supported by National Natural Science Foundation of China (41172009), China Geological Survey Grant (1212011120149,2010011009), Doctoral Fund of Ministry of Education of China (20100061110034), Project‘‘111’’ , China (B–06008) and the Program for Introducing Talents of Discipline of Universities of China.


Solenites (Czekanowskiales) from the Late Mesozoic Jehol Biota of Southeastern Jilin, China and its Paleoclimatic Implications
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This study was supported by National Natural Science Foundation of China (41172009), China Geological Survey Grant (1212011120149,2010011009), Doctoral Fund of Ministry of Education of China (20100061110034), Project‘‘111’’ , China (B–06008) and the Program for Introducing Talents of Discipline of Universities of China.

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    摘要:

    Situated at the easternmost area of the Late Mesozoic Jehol Biota, China, abundant fossils, including invertebrates, vertebrates and plants, were collected from the Early Cretaceous Yingzuilazi Formation of the Baishan Basin, southeastern Jilin. The faunal remains from this formation distinctly belong to the Early Cretaceous Lycoptera–Ephemeropsis–Eosestheria assemblage of the Jehol Biota. Based on the gross leaf morphology and epidermal structures, two new species and one indeterminate species of genus Solenites (Czekanowskiales), S. baishanensis sp. nov., S. gracilis sp. nov. and S. sp. are described in this paper. This is the first fossil plant of Czekanowskiales reported from this new fossil locality of the easternmost area of the Late Mesozoic Jehol Biota, China. The new discovery contributes to improve our knowledge for understanding of leaf morphology, epidermal characters and diversity of this genus during the Early Cretaceous time, and extends geologic and geographic distribution of Solenites in northern China and Eurasia. Along with consideration of associated plant and faunal assemblages and sedimentology, we suggest that the regional climate was warm and moderately humid with seasonal temperature and precipitation variations in warm–temperate zone during the Early Cretaceous.

    Abstract:

    Situated at the easternmost area of the Late Mesozoic Jehol Biota, China, abundant fossils, including invertebrates, vertebrates and plants, were collected from the Early Cretaceous Yingzuilazi Formation of the Baishan Basin, southeastern Jilin. The faunal remains from this formation distinctly belong to the Early Cretaceous Lycoptera–Ephemeropsis–Eosestheria assemblage of the Jehol Biota. Based on the gross leaf morphology and epidermal structures, two new species and one indeterminate species of genus Solenites (Czekanowskiales), S. baishanensis sp. nov., S. gracilis sp. nov. and S. sp. are described in this paper. This is the first fossil plant of Czekanowskiales reported from this new fossil locality of the easternmost area of the Late Mesozoic Jehol Biota, China. The new discovery contributes to improve our knowledge for understanding of leaf morphology, epidermal characters and diversity of this genus during the Early Cretaceous time, and extends geologic and geographic distribution of Solenites in northern China and Eurasia. Along with consideration of associated plant and faunal assemblages and sedimentology, we suggest that the regional climate was warm and moderately humid with seasonal temperature and precipitation variations in warm–temperate zone during the Early Cretaceous.

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LI Yunfeng, *, , and, SUN Chunlin, LI Tao, NA Yuling, CHEN Yuejun, XING Dehe.2015. Solenites (Czekanowskiales) from the Late Mesozoic Jehol Biota of Southeastern Jilin, China and its Paleoclimatic Implications[J]. ACTA GEOLOGICA SINICA(English edition),89(4):1088~1102

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  • 收稿日期:2014-05-06
  • 最后修改日期:2014-08-17
  • 在线发布日期: 2015-08-14
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