陕西神木侏罗纪恐龙足迹的新发现及其地层学意义

NEW JURASSIC DINOSAUR FOOTPRINTS OF SHENMU COUNTY,SHAANXI PROVINCE,AND THEIR STRATIGRAPHIC SIGNIFICANCE

在进行文物普查时于陕西神木县栏杆堡镇附近发现了大量恐龙足迹化石,而且足迹的种类也不尽相同,同以往该地发现的足迹类型相比、存在明显的区别。两处足迹化石点地层时代分属早侏罗世和中侏罗世,较之以前在该地和省内其他地方发现的足迹化石的时代要早很多。在对化石所在地层作对比的同时,对陕西神木的恐龙足迹化石分布展开了探讨。

Geological and archeological survey in recent years has recovered a large number of dinosaur footprint fossils near two villages of Langanbao, Shenmu County,Shaanxi Province. Fossil footprints of these two sites are not only abundant but also different from each other. There were also different previously fossil footprints in the Shenmu area. The fossiliferous strata at the two footprint sites are of Early Jurassic and Middle Jurassic age, older than strata containong previously reported footprints in the Shenmu area and other parts of Shaanxi Province.