采于辽宁省抚顺始新世地层中的杜仲属Eucommia果实化石 ,是迄今为止在中国发现的可靠无疑的第一例该属植物的果实化石 .尽管杜仲现仅残存于中国中部地区 ,但在第三纪该属植物在北半球有着相当广泛的分布 .抚顺化石标本与北美西部始新世EucommiamontanaBrown果实非常相似 ,根据它们的体积很容易和现生种E ulmoides以及日本始新世种E .kobayshii加以区分 . The Eucommia fossil, an Eucommia fossil collected from the Eocene strata of Fushun, Liaoning Province, is the first undoubtedly found fossil fruit of this genus in China so far. Although Eucommia ulmoides subsumes are only found in central China, The Triassic genus is quite widespread in the northern hemisphere, and Fushun fossil specimens are very similar to the EoceneBrownBrown fruit of western North America, distinguishable by their volume from the current species E ulmoides and the Japanese Eocene Ekobayshii .