| 中国北方安加拉植物群 |
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| 关键词:Angara flora northern China |
| 基金项目:国家自然科学基金 |
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| The Angara Flora from Northern China |
| Angara flora is an important part of Carboniferous and Permian fossil plants in northern China and has been found mainly in the border provinces and regions of northern China with a roughly E_W extension.Its geographic range includes northern Xinjiang, northern Gansu, northern Ningxia, the Beishan and Badain Jaran areas in west and the Abga Qi, Dong Ujimqin Qi areas in east of Nei Mongol plateu,to east the Da Xingan Ling and Xiao Xingan Ling ranges,and the Zhangguangcai Ling, Wandashan and Laoyieling ranges of Changbaishan Mountains. So far as the knowledge goes, the south limit of the distribution of Angara folra in China is roughly a line from the Telasi river in west to Xingxingxia in east of Xinjiang, eastward through Alxa, Yinshan, Onder Sum, Xar Moron river of Nei Mongol to Songhuahu lake and Yanji city of Jilin,and some late Permian elements of Angara flora have been found in farther south.In geological age,Angara flora in China is ranging from Early Carboniferous to Late Permian as in Angaraland.The Early and Middle Carboniferous ones are mainly distributed in northern Xinjiang, where the Early_Middle Carboniferous strata are widespread with compex sedimental enviromment of marine, continantal and paralic facies, and yielding abundant animal and plant fossils. The Late Carboniferous ones are widespread over the region in thewest, middle and east parts, where there is a large area terrestrial strata.The Early Permian fossil plants ane poor, though they have been found in the west and east parts of the region, with collections of notmany individuals and relatively monotonous taxa. In Late Permian, Angara flora is most flourishing in this region and occurring almost everywhere in this region. |
| HUANG Ben-hong,DING Qiu-hong.1998.The Angara Flora from Northern China[J].Acta Geoscientica Sinica,19(1):97-104. |
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