The koobi fora deposits , rich in mammalian , molluscan and other fossil remains , have contributed more to the understanding of paleo - environments than any other site on the continent 在图尔卡纳湖畔发现的库比?福勒化石遗迹中发掘出了许多哺乳动物、软体动物和其他动物的化石，它对于研究理解古代自然环境所作的贡献是非洲任何其他地方无法比拟的。
2.
The deposits from bottom to top are the xiadian formation , zhaili formation , tongxian formation , xiaojiahe formation , yingezhuang formation and liubintun formation . the present paper deals with the quaternary molluscan fossils from the beijing plain 自下而上的岩性组分别是：夏垫组、翟里组、通县组、肖家河组、尹各庄组、刘斌屯组。
