Ordovician island arc.
奥陶纪岛弧
Early Ordovician strata
早奥陶世地层
early to middle Ordovician.
早中奥陶世
Ordovician Majiagou Formation
奥陶系马家沟组
the Honghuayuan Formation of Ordovician
奥陶系红花园组
A Study of Ordovician Genus Oncograptus
奥陶纪肿笔石类笔石的研究
THE ORDOVICIAN OSTRACODS FROM WESTERN CHEKIANG
浙江西部奥陶纪介形类
ORDOVICIAN GRAPTOLITE BEDS OF LONGYOU, CHEKIANG
浙江龙游奥陶纪笔石地层
Lowstand bottom fan in upper Ordovician series..
上奥陶统低水位期盆底扇体。
MIDDLE ORDOVICIAN CEPHALOPODS FROM ANHUI AND ZHEJIANG
安徽, 浙江中奥陶世头足类新材料
A FEW LOWER ORDOVICIAN TRILOBITES FROM EASTERN SHANSI
山西东部早奥陶世的几个三叶虫
NEW DATA OF THE ORDOVICIAN ACRITARCHS FROM NORTH CHINA
华北奥陶纪疑源类新知
Study of Sequence Stratigraphy at Terminal of Ordovician
奥陶纪末期层序地层学研究
CAMBRIAN AND ORDOVICIAN GRAPTOLITES FROM SANDU,S.GUEIZHOU
黔南三都寒武纪及奥陶纪笔石
The discovery of acritarch in Early Ordovician from Hunan.
湖南早奥陶世疑源类的发现
Ordovician Lithofacies Paleogeography of North Bohai Bay Basin
渤海湾盆地北部奥陶纪岩相古地理
Late early and Middle Ordovician cephalopods from guichi, Anhui
安徽贵池早奥陶世晚期及中奥陶世的头足类
SOME LOWER ORDOVICIAN BRACHIOPODS FROM TANGSHAN,NANJING,JIANGSU
江苏宁镇山脉得早奥陶世腕足动物
STRATIGRAPHIC CLASSIFICATION OF THE ORDOVICIAN PERIOD OF GUILIN
桂林奥陶纪地层的划分
LATE ORDOVICIAN BRACHIOPODS OF DA HINGGAN LING IN NORTHEAST CHINA
大兴安岭中段奥陶纪的腕足动物
BOUNDARY OF CAMBRIAN AND ORDOVICIAN IN SOUTHERN LIAODONG PENINSULA
辽东半岛南部寒武系与奥陶系界线
ORDOVICIAN GRAPTOLITE BIOSTRATIGRAPHY OF GONGCHENG, GUANGXI, CHINA
广西恭城奥陶纪含笔石地层
Discovery of the ORDOVICIAN TRILOBITES in Altun mountains, Xinjiang
新疆阿尔金山奥陶纪三叶虫的发现
Discovery of Middle Ordovician graptolite beds in gongcheng, Guangxi
广西恭城中奥陶世笔石地层的发现
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