The Simpson point is a
Paleo-Indian projectile point
In North American archaeological terminology, a projectile point is an object that was hafted to a weapon that was capable of being thrown or projected, such as a javelin, dart, or arrow. They are thus different from weapons presumed to have ...
with a wide blade noted for exhibiting a narrowed 'waist' (middle section). It also features a concave base and eared basal corners. It was named in 1962 by Ripley P. Bullen. Points are mostly dated to 9000BC
and are considered to be a typical example of the
Middle Paleo-Indian subperiod (9000-8500 BC).
References
Projectile points
{{US-archaeology-stub