项目以我国关键地区侏罗系陆相连续地层剖面和丰富叶肢介化石记录为基础平台，结合大量高精度测年数据，参考磁性地层学和化学地层学最新研究成果，以扫描电镜为基础研究手段，开展叶肢介系统分类学和高分辨率生物地层学研究，通过叶肢介生物地层学国际对比研究，建立和完善我国侏罗系高精度岩石地层学序列和生物地层学格架，详细系统划分叶肢介动物群演化阶段。加强现生和化石叶肢介个体生态学和居群生态学研究，捕捉侏罗纪叶肢介演化事件和古环境信息，建立叶肢介动物群演替事件与快速气候变化的对应关系，发挥我国侏罗纪丰富叶肢介化石记录的材料优势，开展生物古地理学研究，详细划分我国侏罗纪叶肢介古地理区系，结合现生叶肢介地理区系划分，深入总结叶肢介在侏罗纪温室气候条件下的时空规律，从而达到揭示叶肢介对快速气候变化的反馈过程和应对机制。最终揭示导致侏罗纪叶肢介动物群发生危机、灭绝、复苏和古地理分异的古气候-古环境控制因素。

The Chinese well-developed Jurassic strata are mainly of non-marine origin, which yield abundant non-marine fossil records including representatives of almost all of the major clades of terrestrial and freshwater vertebrates, a wide variety of invertebrate faunas and diverse floras. The Chinese non-marine Jurassic biotas provide a rare, incredibly detailed picture of a terrestrial ecosystem under a greenhouse climate conditions. The proposed project is intended to choose the well-developed, non-marine Jurassic stratigraphically continuous type sections in key araes in China, through high-resolution sampling of rich fossil clam shrimps, to carry out a detail study on the palaeontology and high resolution biostratigraphy on clam shrimps by the examination of type and newly collected specimens under the help of a scanning electron microscope. At the same time we would conduct a faunal analysis of the Chinese Jurassic clam shrimps in comparison with those from the Purbeck beds of UK and the Morrison Formation of the US. By the help of recently published, a large number of high-precision radiometric dating data from the Jurassic strata, and referring to the latest published research results on non-marine Jurassic magnetostratigraphy and chemostratigraphy, we would try to improve and perfect the Chinese non-marine Jurassic lithological and biostratigraphical time scale, to delineate the evolutionary stages of the Chinese Jurassic clam shrimp faunas. Futher more, we would like to carry out studies on the recent and fossil clam shrimp taphonomy, autecology, population ecology, to discern the Jurassic clam shrimp evolutionary events and to capture the relevant environmental information, which would link the clam shrimp faunal turnover with the rapid palaeoclimate change. Then, through getting use of the over a long period of time accumulated Chinese recent clam shrimp records and the Jurassic fossil clam shrimp data, we would like to undertake an analysis and delineate the Jurassic clam shrimp biogeographic provinces. So that we could dipict the spatial and temporal distribution of the Chinese clam shrimp faunas during the Jurassic “greenhouse” climate, and their feedback processes and mechanism to rapid climate warming disturbances. At last, we can decipher the controlling environmental factors that led to the Jurassic clam shrimp faunal crisis, extinction, recovery and palaeogeographic distribution differentiation during rapid palaeoclimate change.