华北区系三叠-侏罗纪界线生物群发现于福建西部  

A Discovery of the North China Provincial Fauna in the Triassic-Jurassic Boundary Beds in Western Fujian,South China

作　　者：陈金华[1] 曹美珍[1] 小松俊文[1] 

机构地区：[1]中国科学院南京地质古生物研究所,南京210008

出　　处：《科学技术与工程》2003年第3期230-231,共2页Science Technology and Engineering

基　　金：国家自然科学基金(40172003);国际合作交流基金;国家重点研究发展规划(G2000077700)资助

摘　　要：报道产于福建西部三叠-侏罗纪界线附近的一个生物群,包括介形类Tungchuania sp., Gomphocythere?yuba-cunensis, Gomphocythere?longa等,双壳类Shaanxiconcha spp.和植物,此生物群属于华北生物区系。讨论了华北生物区生物在华南出现的意义,认为标志着当时华北与华南两大陆块已经拼合。A faunal assemblage from the lacustrine deposits of the Triassic-Jurassic houndary beds in western Fujian, southChina, is reported which are composed of ostracods Tungchuania sp., Gomphocythere? yubacunensis, Gomphocythere? longaetc. and bivalves Shaanxiconcha spp. The assemblage has been identified as belonging to the North China bio-province, andhence it most probably was migrated from the North China continental block at that time. This, however, significantly indicatesa faunal dispersion and migration between bio-provinces happened after a collision between the North China and South Chinacontinental blocks.

关 键 词：华北生物区系 三叠-侏罗纪界线地层 生物群 介形类 双壳类 植物 地块拼合 福建 

分 类 号：Q911.6[天文地球—古生物学与地层学]