DISCOVERY OF ORDOVIC IAN CONODONT AND SCOLECODONT FOSSILS IN LATER CARBONACEOUS CARBONATE ROCK STRATA IN ANYANG MT, HUOQIU, ANHUI
CHENG Cheng;LI Shuang-ying;JI Zai-fei;WANG Song;YANG Dong-dong;ZHANG Qiang;School of Resources and Environmental Engineering, Hefei University of Technology;Analysis and Testing Center of Hefei University of Technology;
A latest research indicated that carbonate rock member in the lower part of the Anyang Mt(Baida Mt) section, Huoqiu, Anhui belongs to late Carbonaceous epoch, clastic rock member in the upper part to Qingbaikouan period. Further micropaleonlogical analysis found abundant such fossils in the late carbonaceous carbonate rock, of which conodont and scolecodont fossils dominate in quantity. Identified conodont is Belodina, scolecodonts include Marlenites marginatus,Chairidogenys borealis,Cornugenys sp.,Porrhogrnys s p.,Channahania s p.,Paradrilonersgenys cherylae, e t c. Belodina dated back to late Ordovician epoch and scolecodonts Ordovician period. Ordovician fossils occurring in later Carbonaceous epoch suggested that there may have been an Ordovician source of micro fossils, which were eroded, transported, re-deposited and preserved in late Carbonaceous carbonate rock. Obviously, this discovery may not be significant stratigraphically, but paleogeographically and paleotectonically.