Las Capas (AZ AA:12:111) is an Early Agricultural period (see B. Huckell 1995) site covering approximately 50 hectares in area, located on an ancient floodplain of the Santa Cruz River on the northwestern outskirts of Tucson, AZ (Mabry 2008). Survey and excavations at the site have recovered evidence of occupation by hunting and gathering peoples dating as early as 4800 B.P. By 4100 B.P. maize remains appear in the deposits associated with habitation features, pits, middens, burials and many other features. By about 3200 B.P. people began building irrigation canals on the floodplain (Mabry 2008:9-25). So far, more carbonized maize remains have been directly dated from this site than any other site in the Americas (Mabry 2008:55-58; Diehl 2005).
ID | Other ID | Type | Subtype | Uncal BP (years) | ± 1 σ (years) | Median cal BP (years) | Lower cal BP (years) | Upper cal BP (years) | δ13C | Contaminated? |
---|---|---|---|---|---|---|---|---|---|---|
178 | Beta-140050 | MacroSample | unknown | 2690 | 30 | 2789 | 2850 | 2752 | No | |
162 | Beta-129426 | MacroSample | unknown | 2880 | 40 | 3012 | 3158 | 2879 | No | |
163 | Beta-129427 | MacroSample | unknown | 2849 | 50 | 2968 | 3158 | 2846 | No | |
164 | Beta-119631 | MacroSample | unknown | 2820 | 50 | 2928 | 3072 | 2792 | No | |
96 | Beta-148408 | MacroSample | unknown | 3060 | 40 | 3284 | 3375 | 3162 | No | |
100 | Beta-133893 | MacroSample | kernel | 2650 | 40 | 2767 | 2849 | 2731 | No | |
184 | Beta-133897 | MacroSample | unknown | 2500 | 40 | 2581 | 2740 | 2367 | No | |
172 | Beta-140058 | MacroSample | unknown | 2740 | 40 | 2831 | 2925 | 2759 | No | |
150 | Beta-145108 | MacroSample | unknown | 3060 | 40 | 3284 | 3375 | 3162 | No | |
173 | Beta-140057 | MacroSample | unknown | 2740 | 30 | 2826 | 2921 | 2765 | No | |
174 | Beta-118150 | MacroSample | unknown | 2730 | 50 | 2828 | 2945 | 2753 | No | |
151 | Beta-140055 | MacroSample | unknown | 3020 | 30 | 3284 | 3375 | 3162 | No | |
152 | Beta-140054 | MacroSample | unknown | 3000 | 30 | 3200 | 3324 | 3078 | No | |
153 | Beta-140064 | MacroSample | unknown | 2970 | 30 | 3151 | 3260 | 3006 | No | |
154 | Beta-145107 | MacroSample | unknown | 2960 | 40 | 3134 | 3317 | 2991 | No | |
155 | Beta-140063 | MacroSample | unknown | 2960 | 40 | 3134 | 3317 | 2991 | No | |
156 | Beta-148407 | MacroSample | unknown | 2940 | 40 | 3105 | 3240 | 2963 | No | |
157 | Beta-148405 | MacroSample | unknown | 2940 | 40 | 3105 | 3240 | 2963 | No | |
158 | Beta-145105 | MacroSample | unknown | 2940 | 40 | 3105 | 3240 | 2963 | No | |
159 | Beta-119633 | MacroSample | unknown | 2930 | 40 | 3090 | 3215 | 2958 | No | |
160 | Beta-118416 | MacroSample | unknown | 2930 | 50 | 3090 | 3256 | 2930 | No | |
168 | Beta-133898 | MacroSample | unknown | 2770 | 40 | 2865 | 2958 | 2777 | No | |
169 | Beta-133894 | MacroSample | unknown | 2760 | 60 | 2861 | 2998 | 2754 | No | |
170 | Beta-119630 | MacroSample | unknown | 2750 | 50 | 2846 | 2955 | 2759 | No | |
171 | Beta-140051 | MacroSample | unknown | 2750 | 40 | 2841 | 2946 | 2765 | No | |
175 | Beta-140056 | MacroSample | unknown | 2730 | 60 | 2834 | 2957 | 2748 | No | |
176 | Beta-133890 | MacroSample | unknown | 2710 | 40 | 2811 | 2917 | 2750 | No | |
177 | Beta-140060 | MacroSample | unknown | 2710 | 50 | 2816 | 2925 | 2746 | No | |
179 | Beta-140053 | MacroSample | unknown | 2690 | 50 | 2802 | 2920 | 2740 | No | |
180 | Beta-133892 | MacroSample | unknown | 2670 | 40 | 2780 | 2853 | 2742 | No | |
181 | Beta-119634 | MacroSample | unknown | 2660 | 40 | 2774 | 2850 | 2739 | No | |
182 | Beta-140061 | MacroSample | unknown | 2630 | 40 | 2755 | 2845 | 2624 | No | |
183 | Beta-119632 | MacroSample | unknown | 2550 | 40 | 2628 | 2755 | 2489 | No | |
161 | Beta-140062 | MacroSample | unknown | 2920 | 30 | 3068 | 3205 | 2963 | No | |
165 | Beta-123450 | MacroSample | unknown | 2810 | 70 | 2925 | 3141 | 2764 | No | |
166 | Beta-140059 | MacroSample | unknown | 2780 | 40 | 2878 | 2968 | 2778 | No | |
167 | Beta-133891 | MacroSample | unknown | 2770 | 40 | 2865 | 2958 | 2777 | No | |
83 | Beta-148409 | MacroSample | kernel | 3670 | 40 | 4003 | 4144 | 3888 | No | |
101 | Beta-140052 | MacroSample | kernel | 2530 | 40 | 2605 | 2748 | 2473 | No | |
758 | Beta-306685 | MacroSample | unknown | 2710 | 30 | 2808 | 2860 | 2757 | -12.6 | No |
761 | Beta-339695 | MacroSample | unknown | 2280 | 30 | 2313 | 2351 | 2159 | -9.8 | No |
759 | Beta-306688 | MacroSample | unknown | 2630 | 30 | 2754 | 2789 | 2721 | -10.5 | No |
760 | Beta-306689 | MacroSample | unknown | 2610 | 30 | 2746 | 2777 | 2715 | -10.4 | No |
762 | Beta-339694 | MacroSample | unknown | 2250 | 30 | 2231 | 2343 | 2156 | -10.0 | No |
763 | Beta-339693 | MacroSample | unknown | 2270 | 30 | 2257 | 2348 | 2158 | -10.8 | No |
764 | Beta-292154 | MacroSample | unknown | 3170 | 40 | 3397 | 3471 | 3273 | -8.7 | No |