The Philippines is composed of nine sedimentary basins namely; Ilocos–Central Luzon Basin, Cagayan Valley Basin, Southern Luzon–Bicol Basin, Mindoro Basin, Iloilo Basin, Visayan Sea Basin, Samar Basin, Agusan–Davao Basin, and Cotabato Basin. Numerous paleontologic and biostratigraphic studies have been conducted on these basins. This interactive map helps visualize the location of fossils used to determine the ages of sedimentary formations. Brief introduction can be accessed by clicking each icon on the map.
