张玉光   李建军
(北京自然博物馆  北京 100050)

摘 要：通过对四川井研的含马门溪龙动物群地层进行描述划分，并且将其中的化石与马门溪龙属中其他类型在形态特征、地层层位上逐一对比。综合分析得出了井研马门溪龙动物群出现于晚侏罗世早期、而且在形态组合上是较为原始的类群，形态学的鉴定和地层学结果相互吻合，同时也进一步清晰了马门溪龙属在晚侏罗世的演化脉络。

STRATIGRAPHY OF THE
MAMENCHISAURUS FAUNA IN JINGYAN ,SICHUAN
ZHANG Yu-guang and LI Jian-jun
（Benjing Natural History Museum,Beijing,100050）

Abstract  The Jurassic strata in Jingyan of Sichuan containing the Mamenchisaurus fauna are dealt with and divided in this paper. The Mamenchisaurus fossils contained there are compared in morphological features and stratigraphically with other types of the genus on by one, The comprehensive analysis show that the Mamenchisaurus fauna of Jingyan appeared in the early Late Jurassic and is primitive in morphology.The results of the morphological identification and stratigraphical study agree with each other, Their evolutionary processes in different apoches of the Late Jurassic also made clear.

Key words  Jingyan,  Sichuan,  Mamenchisaurus Fauna,  stratigraphy,  evolution 

《地层学杂志》. 2003.27（1）.50-53.