地质通报2016，Vol.35Issue(6)：856-865,10.
大兴安岭中段东坡龙江盆地早白垩世植物化石新材料
Early Cretaceous plant fossils and their paleoenvironment in Longjiang basin on the eastern slope of middle Da Hinggan Mountains
摘要
Abstract
An Early Cretaceous flora from the Longjiang basin on the eastern slope of middle Da Hinggan Mountains is reported. The flora consists at least of 31 species of 18 genera in magafossils and 17 species of 21 genera of palynofossils, and is predominated by artic⁃ulatae, ferns, ginkgoales and czekanowskiales, followed by bennettitales, cycadoales and Carpolithus, which are probably early-middle Early Cretaceous in age. According to the plant characteristics and associated biological characteristics of Jehol Biota, the Longjiang ba⁃sin seems to have experienced warm and humid temperate seasonal changes, accompanied by a brief arid, semi-arid climate in the ear⁃ly-middle Early Cretaceous in general. The paleoenvironment of Longjiang basin should be the lake marsh environment with differ⁃ent biomes in the wetlands and hillside.关键词
植物化石/早白垩世/古环境/龙江盆地/大兴安岭中段东坡Key words
flora/Early Cretaceous/paleoenvironment/Longjiang basin/the east slope of middle Da Hinggan Mountains分类
天文与地球科学引用本文复制引用
张渝金,吴新伟,杨雅军,张超,郭威,宋维民..大兴安岭中段东坡龙江盆地早白垩世植物化石新材料[J].地质通报,2016,35(6):856-865,10.基金项目
中国地质调查局项目 （）
