江苏省泗洪地区上第三系地层发育齐全,分布广泛,古生物化石十分丰富。[图1:泗洪地区中新统剖面位置图]对本区上第三系及古生物的研究,可为苏北—南黄海盆地内相当的地层对比及地质时代的确定提供较为可靠的依据。苏北—南黄海盆地由于有巨厚的上第三系盐城群非海相沉积,并已发现油气流,而在这同一地质时期, Sihong area in Jiangsu Province developed in the Tertiary strata, widely distributed, paleontology fossils are very rich. Figure 1: Location of the Miocene Section in Sihong Area The study of the Upper Tertiary and Paleontology in this area provides a reliable basis for the stratigraphic correlation and geologic age determination in the North Jiangsu-South Yellow Sea basin. North Jiangsu - South Yellow Sea basin due to the huge Yancheng Group on the Third Member of the non-marine sediments and oil and gas have been discovered, and in this same geological period,