It was considered that contact between the Hengshan Formation and the Upper Member of the Shouchang Formation in hemas-microsoft-com:office:smarttags" />ZhejiangProvince was conformable and they were referred to the Jiande Group. A further geological survey demonstrated that the Hengshan Formation disconformitedly overlies the Shouchang Formation in the ShouchangBasin. The Hengshan Formation is unconformable or disconformitive with the underlying strata in Duntou Basin of Lanxi, Ganwu Basin of Chun’an and Zhuchun Basin of Changshan. It indicates that the age of Hengshan Formation in ZhejiangProvince ranges from the late Early Cretaceous to Late Cretaceous. It is comparable with Yongkang Group of southeastern ZhejiangProvince in biostratigraphy, lithostratigraphy, and choronostratigraphy.