This paper reports fossil pollen collected recently from the Upper Jurassic Yixian Formation of western Liaoning Province, and first demonstrates the oldest known angiospermous pollen in the world.
对辽宁西部晚侏罗世义县组中的孢粉植物群进行了系统研究，首次发现了目前为止世界上最古老的被子植物花粉化石。
This is very helpful for studying the exportation range of the products from the Dajing ancient copper smelting site and the metallurgical history in the western Liaoning Province.
这一结论，对探讨大井古铜矿冶炼产品的使用范围和辽西地区的冶金历史有重要意义。
AIM: to analyze the rules and characteristics of somatotype development of Han children in western rural area of Liaoning Province, so as to supplement essential data for physical anthropology.
目的：分析辽西地区农村汉族儿童的体型发育规律和特点，为体质人类学补充必要数据。
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