To Sam Yot Fossils

The site is an isolated cliff limestone mountain located on the road between Ban Saphan Wa and Ban Pa Kae. The site has a shrine at the foothills covering an area about 30 x 40 square meters. The limestone at the site is characterized by an intercalation between limestone and argillaceous limestone with a feature of compression creating the nodular limestone. Bivalves in the cross section views are mostly in the upside-down positions with a big nautiloid. The upside-down positions of the bivalves are indicated that the deposition was taken place along a seashore affected by seawater that swashed up on the beach and back swashed down to the sea. The limestone is closely related to either Talo Dang Formation or Lae Tong Formation of the Ordovician Thung Song Group.