Paleo Indian Period 10000 - 6000 BC Hunter gatherers, small groups, nomadic, hunted mostly big game and some small. Spear most important weapon. Learned to herd buffalo over cliffs or trap them. Different type dart points than paleo Indian. Used grinding tools - metate, mano, bedrock mortars.
Pit ovens common to bake plant roots, sotol, lechugilla.
Ovens survive today as burned rock middens. 900 - 1500 Introduction of Agriculture to some village settlements. Prior to that, adle-adle and spear used. Pottery and arrow points are indicators of late prehistoric period. Some villages grew up, but many groups continued a nomadic lifestyle.