Fast facts Also called Agate Basin points Long, slender points with very regular horizontal, parallel-sided flake scars across the surface Blade edges vary from parallel to slightly excurvate, but taper to the base Biconvex cross-section Base straight or slightly concave Blade edges usually ground smooth along lower third of the specimen Bases often not ground Size: Up to 5½-6 inches long, average around 3 inches long Late Paleoindian ca. 8500-8000 BC People Paleoindian Artifact Type Blades
