【摘要】 <正> 为确切进行华南东部上三叠统分阶研究,在中国国家基金委的资助下,我们系统调查了中日有关地层,进行了初步对比。本文先介绍对日本晚三叠世生物群的划分和对比研究结果。日本在地质构造上大致分为:西南日本区(分为外带和内带)、关东地区、东北日本区及北海道。晚三叠世地层集中分布于西南区的外带和内带,在关东地区和东北日本区较为零星;北海道仅个别点见及。以往,日本的晚三叠世生更多还原

【Abstract】 Two types of different realms within Japanese Upper Triassicfaunas are recognizable, their ages are discussed. The Kochgatani Fauna isthe representative of the Arcto-Pacific realm, its early group is revised to Car-nian to Lower Norian in age while its late group is regarded to middle-upperNorian to Rhaetian. The megalodont assemblage and the "St. Cassian" faunaof Japan are both belonging to the Tethyan realm, they may correspond to therelevant faunas of late Carnian or early Norian age of south China. The resultis significanily for further studying the Chinese nonmarine Upper Triassic se-quence.更多还原