| 河北涞源县的古油松化石 |
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| 引用本文： | 陶君容,王庆之.河北涞源县的古油松化石[J].中国科学院研究生院学报,1983,21(1):108-109. |
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| 作者姓名： | 陶君容 王庆之 |
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| 作者单位： | 1(中国科学院植物研究所) 2(河北省第一区域地质调查队) |
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| 摘 要： | The fossils here described were collected from the Lai Yuan, Hebei Province in
north China. Well-preserved plant parts are cones of Pinus, identified as Pinus pro-
totabulaeformis sp. nov. The species is different from other taxa of Pinus by larger
cones and scales. The size of the cone is a reliable diagnostic character in the group:
The large cone and scale indicate rather an arid climate in Summer in the region
where the fossils are discovered.
The age of bearing-beds is considered Upper Eocene-Lower Oligocene.
Diagnosis: Cones ovate in general outline, 8.5 cm long, 4.5 cm in diameter. Seed
scales oblong, 2—2.5 cm long, 0.8—1.1 cm wide. Apophysis obviously fattened andthickned, convex, compressed rhomboid, rostrate at the apical part of seed-bract.
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Fossil Pinus in Lai Yuan Xian, Hebei Province |
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| Tao Jun-Rong,Wang Qing-Shi.Fossil Pinus in Lai Yuan Xian, Hebei Province[J].Journal of the Graduate School of the Chinese Academy of Sciences,1983,21(1):108-109. |
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| Authors: | Tao Jun-Rong Wang Qing-Shi |
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| Institution: | 1(Institute of Botany, Academia Sinica)
2 (The First Regional Geological Survey of Hebei Province) |
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| Abstract: | The fossils here described were collected from the Lai Yuan, Hebei Province in
north China. Well-preserved plant parts are cones of Pinus, identified as Pinus pro-
totabulaeformis sp. nov. The species is different from other taxa of Pinus by larger
cones and scales. The size of the cone is a reliable diagnostic character in the group:
The large cone and scale indicate rather an arid climate in Summer in the region
where the fossils are discovered.
The age of bearing-beds is considered Upper Eocene-Lower Oligocene.
Diagnosis: Cones ovate in general outline, 8.5 cm long, 4.5 cm in diameter. Seed
scales oblong, 2—2.5 cm long, 0.8—1.1 cm wide. Apophysis obviously fattened andthickned, convex, compressed rhomboid, rostrate at the apical part of seed-bract. |
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