Early Archaic markers. Weak barely recognizable shoulders. Large, thick construction. Concave notched bases basal thinning. Oshara Tradition most significant tradition New Mexico's Archaic period. Noel Justice's 2002 typology Stone Age Spear Arrow Points Southwestern United States, built upon Cynthia Irwin-Williams' pioneering 1960s work established Oshara Tradition framework.
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