The Discovery of Bathynotus from Lower Part of the Kaili Formation at Sanwan Village,Nangao Town,Danzhai County(Duyunian丹寨南皋凯里组下部(寒武系第2统)Bathynotus及其古生物学和生物地层学的意义
BATHYNOTUS FROM KAILI FORMATION (LOWER-MIDDLE CAMBRIAN) OF KAILI AREA, GUIZHOU贵州凯里地区早中寒武世凯里组的Bathynotus