FOSSIL CHAROPHYTE LAMPROTHAMNIUM GANCHAIGOU ENSIS ASSEMBLAGE ZONE OF MIDDLE -LATE EOCENE IN LENGHU AREA OF QAIDAM BASIN: ITS IMPLICATION FOR SEQUENCE BIOSTRATIGRAPHY是什么意思 FOSSIL CHAROPHYTE LAMPROTHAMNIUM GANCHAIGOU ENSIS ASSEMBLAGE ZONE OF MIDDLE -LATE EOCENE IN LENGHU AREA OF QAIDAM BASIN: ITS IMPLICATION FOR SEQUENCE BIOSTRATIGRAPHY怎么读