海拉尔盆地介形类化石组合及其生物地层特征  

THE CRETACEOUS OSTRACODA ASSEMBLAGES AND ITS BIOSTRATIGRAPHIC CHARACTER ISTICS IN THE HAILAER BASIN

作　　者：刘振文[1] 黄清华[2] 叶得泉[3] 

机构地区：[1]中国地质大学,北京100083 [2]中国地质科学院地质研究所,北京100037 [3]大庆油田有限责任公司勘探开发研究院,大庆163712

出　　处：《微体古生物学报》2004年第3期309-321,共13页Acta Micropalaeontologica Sinica

摘　　要：本文简要概述了海拉尔盆地的沉积特征及其地层层序 ,深入分析了介形类化石纵、横向展布规律 ,建立了 5个化石组合序列 :1. L imnocypridea subscalara- H ailaeria dignata组合 ;2 . Cypridea badalahuensis- H ailaeria cre-tacea组合 ;3. Ilyocyprimorpha hongqiensis- Rhinocypris rivulosus组合 ;4 . Altanicypris obesa- Talicypridea triangu-lata组合 ;5 . Chinocypridea augusta- Talicypridea qingyuangangensis组合。进而根据介形类组合及其分布特征 。This paper briefly introduces the sedimentary character istics and stratigraphic sequence in the Hailaer Basin. Based on the composition and distribution of ostracode species, five ostracoda assemblages have been identified: 1. Limnocypridea subscalara-Hailaeria dignata assemblage; 2. Cypridea badalahuensis-Hailaeria cretacea assemblage; 3. Ilyocyprimorpha hongqiensis-Rhinocypris rivulosus assemblage; 4. Altanicypris obesa-Talicypridea triangulata assemblage; and 5. Chinocypridea augusta-Talicypridea qingyuangangensis assemblage. According to the materials of ostracods and their distribution, we described the biostratigraphic features and pointed out their significance in stratigraphic subdivision and correlation in the Hailaer Basin.

关 键 词：海拉尔盆地 介形类 化石 生物地层特征 组合序列 内蒙古 白垩纪 

分 类 号：Q913[天文地球—古生物学与地层学]