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聂拉木地区位于西藏南部、珠峰的中段,本区侏罗系海相地层广泛发育。科学院西藏科考队于1966—1968年间对该区早、中侏罗世地层进行了工作,将其命名为聂聂雄拉群。1980年,王义刚将侏罗系下部改名为普普嘎组,中部名为聂聂雄拉组。地质部青藏地调大队十一分队于80年对该区侏罗系地层进行了详细的生物地层和岩石地层工作,将下统命名为普普嘎桥组,中统的下部(相当巴柔期)仍沿用聂聂雄拉组,中统中、上部(相当巴通期—卡洛期)另命名为拉龙拉组(十一分队详有专文)。本文样品是作者80年野外工作期间所采集,样品产自普普嘎桥组和聂聂雄拉组。样品分析及标本照相均由作者本人完成。本文最后经郝诒纯教授审阅。
Nyalam region is located in southern Tibet, the middle of Mount Everest, Jurassic marine strata in this area are widely developed. The Tibet expedition team of the Academy of Sciences conducted work on the Early and Middle Jurassic strata in the area between 1966 and 1968, and named it Nie Nieh-Hsiung-La. In 1980, Wang Yigang renamed the lower part of Jurassic the Puguga Formation, and the central part called Nie Niexiongla Formation. The Qinghai-Tibet Plateau Detachment Unit of the Ministry of Geology carried out detailed bio-stratigraphy and lithospheric work on the Jurassic strata in the area in 1980. The subordinate was named Pugagqiao Formation and the lower part of the Central Plains ) Still use the Nie Niexiongla group, the middle, upper (quite Barton - Caroline) is also named another group of zipula (Eleven detachment detailed monograph). The sample is collected by the author during the field work for 80 years. The samples were produced in the Puguaqiao group and the Niexiongxiongla group. Sample analysis and specimen photography by the author himself completed. This article is finally reviewed by Professor Hao 诒 Chun.