湘西──浙西晚寒武世三叶虫群落及古环境

中国南方寒武纪地层出露广泛，层序完整，具有不同的沉积类型和古生物群．研究区包括：湘西、湘中、赣西北、赣东北和浙西．这里寒武系相当发育，前人大多侧重于生物化石的鉴定和化石带的研究，对古环境的研究则很少．为此本文运用岩石学、沉积学、古生物学，特别是运用三叶虫群落的特点及变化进行综合分析，探讨本区古环境．并将赣东北、浙西晚寒武世三叶虫动物群作为重点研究区，自下而上分为3个化石群落．

Trilobite Community and Paleoenvironment of Late Cambrian in Western Huhan to Western Zhejiang, China

The regions concerned are western and certral Hunan, northeast ern and northwestern Jiangxi and Western Zhejiang. In this area, the previous studies mainly focused on the identification of fossils and the founding of fossil zones. In this research the trilobite community and its Paleoenvironmen and the paleoenvironment of the Late Cambrian are investigated in detail, on the basis of which the following three trilobite communities are set up in this region:Lotagnostus ~ Charchaqia Co mmunity of Xiyanshan age of Late Cambrian,Peratagnostus Community and G1yptagnostus Community of Huayanshi age of Late Cambrian.