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报道了 1 997年在四川省珙县石碑乡下侏罗统自流井组东岳庙段里 ,新发现的珙县恐龙化石群中的主要成员———石碑珙县龙 (新属新种 ) ,它是早期的原始的蜥脚类 .除头骨不完整外 ,其他部分保存很好 .它既具有蜥脚类的一些特征 ,又与原蜥脚类有不少共同点 .它是从原蜥脚类向蜥脚类进化的过渡类型 ,为探索蜥脚类的起源与进化提供了实际材料 ,为解决早侏罗世四川盆地自流井组与滇中盆地下禄丰组的对比找到了途径 .
It was reported that in 1967, the newly found member of the Danxian dinosaur fossil group, the Beilianxian Long (new genus), was found in the Dongyuemiao Section of the Lower Jurassic Ziliujing Formation in Shibei Township, Lixian County, Sichuan Province, Early primitive sauropods. Except for the skull is not complete, the other part of the preservation is very good .It has both the sauropod features, but also with sauropods have a lot in common, it is from the sauropod The transitional types of sauropod evolution provide practical materials for exploring the origin and evolution of sauropods, and find a way to solve the contrast between the Zarlung well in the Early Jurassic and the Lower Lufeng Formation in the middle Yunnan.