河北涞源县的古油松化石

1陶君容, 2王庆之

1Tao Jun-Rong, 2Wang Qing-Shi

1(Institute of Botany, Academia Sinica)
2 (The First Regional Geological Survey of Hebei Province)

Received:1900-01-01 Revised:1900-01-01 Online:1983-02-18 Published:1983-02-18
Contact: Tao Jun-Rong

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 and

thickned, convex, compressed rhomboid, rostrate at the apical part of seed-bract.

陶君容, 王庆之. 河北涞源县的古油松化石[J]. 中国科学院大学学报.

Tao Jun-Rong, Wang Qing-Shi. Fossil Pinus in Lai Yuan Xian, Hebei Province[J]. .

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