山东中新世山旺组生物群的古生态

山东临朐产出的中新世山旺组化石群，保存精美、属种分异度高。50多年来，经发掘和研究，目前已从约30余米的硅藻页岩沉积中报导了真菌、硅藻、介形虫、孢粉、昆虫、鱼类、两栖动物、爬行类、鸟类、哺乳动物及遗迹化石等十几个门类的化石，共计400余属700多种。本文总结了化石与周围无机界的关系、化石的埋藏特征、形成原因以及相关古生态学问题――古气候、古温度、古纬度、古地形、山旺湖的水文性质、湖水的季节性变化与硅藻页岩的纹层、动植物群的营养结构以及山旺盆地的沉积历史。

PALAEOECOLOGY OF MIOCENE SHANWANG BIOTA IN SHANDONG PROVINCE, EAST CHINA

The world-renowned Shanwang Miocene lacustrine konservat-lagerst?tte, occurred in the Shanwang Formation of Linqu County in Shandong Province, represents an extraordinarily well-preserved and taxonomically highly diverse fossil biota. Over the past 50 years, more than 700 fossil species belonging to more than 400 genera have been reported from the 30 m diatom shale deposit, including fungi, diatoms, higher plants, ostracodes, insects, fish, amphibians, reptiles, birds, mammals, and trace fossils. This paper focuses on the relationship between the fossil biota and its physical environment with special emphasis on fossil taphonomy and paleoecological factors, such as paleoclimate, paleotemperature, paleolititude, paleogeography, and paleolimnology. Paleohydrology of the Miocene Shanwang lake, such as seasonal changes, limination, food web, and depositional history are also discussed.