Discovery of agglutinated foraminifers from the Longzhaogou Group in eastern Heilongjiang Province  

作　　者：LI Gang & YU Shanmao1. State Key Laboratory of Paleobiology Stratigraphy, Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing 210008, China 2.108th Coal-prospecting Team of Geological Bureau, NE China and Inner Mongolia Coal Company, Jixi 158100, China Correspondence should be addressed to Li Gang (email: [e-mail]) 

出　　处：《Science China Earth Sciences》2004年第2期122-127,共6页中国科学（地球科学英文版）

基　　金：the German Academic Exchange Service (DAAD) Scholarship, Pilot Project of Knowledge Innovation Program, CAS (Grant No. KZCX2-114); the National Natural Science Foundation of China (Grant Nos. 40252003, 40072004); the Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education (Grant No. 2002247); State Key Laboratory Paleobiology and Stratigraphy, CAS (Grant No. 203111).

摘　　要：The low diversity agglutinated foraminifers are recovered from the Qihulin Formation of the Longzhaogou Group in eastern Heilongjiang, China. The foraminiferal fauna consists of 9 species of 5 genera. The common members are Cribrostomoides nonioninoides (Reuss), Haplophragmoides concavus (Chapman), H. gigas minor Nauss. Although the diagnostic zonal taxa are absent in the agglutinated fauna, according to the global stratigraphic distribution of the above-mentioned species, and the associated Pseudohaploceras ammonite fauna, the foraminiferal fauna may be of a Barremian-Aptian (Early Cretaceous) age.The low diversity agglutinated foraminifers are recovered from the Qihulin Formation of the Longzhaogou Group in eastern Heilongjiang, China. The foraminiferal fauna consists of 9 species of 5 genera. The common members are Cribrostomoides nonioninoides (Reuss), Haplophragmoides concavus (Chapman), H. gigas minor Nauss. Although the diagnostic zonal taxa are absent in the agglutinated fauna, according to the global stratigraphic distribution of the above-mentioned species, and the associated Pseudohaploceras ammonite fauna, the foraminiferal fauna may be of a Barremian-Aptian (Early Cretaceous) age.

关 键 词：EARLY Cretaceous  agglutinated foraminifers  Longzhaogou Group  EASTERN Heilongjiang  China. 

分 类 号：Q915[天文地球—古生物学与地层学]