The seven bone Cahokia points in this picture are some of the best examples for this type. They were surface collected, many years ago, on the Cahokia Mounds site. Three of them are in the Gilcrease Museum in Tulsa, Oklahoma and the rest are in private collections. Although rare, these points are the more common "un-notched" style of bone points. They have concave bases with very straight serrated edges and are fairly thin. The point at lower left is the exception without a serrated edge. Sharks teeth have been found on the Cahokia Mounds site and it's believed that these styles of points might be effigies of sharks teeth. All of these points may be made of deer bone. The point at top right measures 1 7/16 inches (3.6 cm) long, 5/8 inch (1.5 cm) wide and 1/16 inch (1.1 mm) thick.