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FIGURE 1: CHRONOLOGY, BASED ON KDERPER AND QRQVLi f 9831 <br />PERIOD TBMPURAL SPAN MAJOR DIAGNOSTIC TRAITS <br />2arly Marc ? to 7500 2.C. +!- ? 1. Lack of grinding implements. <br />8, Large, well made projectile <br />points. <br />Milling Stone 7500 H.Q. +1- 7 to 1. Predominance of manos and <br />I000 R.C. +1- 254 az�etatLaa. <br />B. Ornaments made of stone. <br />S. Large and often crude projectile <br />points. <br />4. Cogstones, evolving into <br />di%{oidals. <br />5. Charmstanes. <br />6. Some mortars and pestles near the <br />end Of the period. <br />Intermediate 1000 S.O. 250 to 1. Pane ornaments. <br />A.O. 750 250 <br />2. Wide use of mortars and pestles <br />along with mars ❑s and metates. <br />Late A.D. 750 +/- 250 to <br />Prehistoric Spanish contact <br />3. Use of Steatite begins. <br />4. Many discoidal%. <br />5, Large projectile points trending <br />to smaller in the last part crf <br />the period. <br />I, Shell ornaments. <br />2. Mc)rtar, pestle, mano and metat% <br />use continues. <br />3. Small, finely worked projectile <br />points, <br />4. Wide use of 5teatite. <br />5. Sams pottery vessels appear near <br />the end of the P'P.rlod. <br />13 <br />