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《Journal of Stratigraphy》 2017-03
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THE DISCOVERY AND SIGNIFICANCE OF LATE TRIASSIC MARINE BIVALVES IN NORTHERN YOUJIANG BASIN OF GUANGXI

WU Nian-dong;WU Wei-zhou;RONG Hong;HE Jie;Guangxi Institute of Regional Geological Survey;  
The authors report the first discovery of Carnian bivalve fossils from the Middle-Upper Triassic Heimiaowan Formation in northern Youjiang basin,Guangxi.These fossils include Halobiacf.planicosta Yin et Hsü,Costatoriacf.nazeensis Guo,and Schafhaeutliacf.sphaerioides(Bottger).They can be divided into two assemblage biozones based on regional paleontological and biostratigraphic data.These are Halobiaand Costatoria biozones.This study provides an important biostratigraphic basis for the chronostratigraphic correlation of Upper Triassic Carnian strata in the Youjiang basin of Guangxi.
【Key Words】: biostratigraphy bivalve Heimiaowan Formation Carnian Late Triassic Youjiang Basin Guangxi
【CateGory Index】: P534.51;Q915
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