El Taller (AZ AA:12:92) is one of the many Middle to Late Archaic and Early Ceramic period sites excavated in the Santa Cruz River floodplain along the Interstate-10 expansion corridor in Tucson, Arizona (Mabry 2008). This site, along with Rillito Fan (AZ AA:12:788), was excavated by the Center for Desert Archaeology in 2001 as part of a salvage archaeology project (Wöcherl 2007a). Carbonized maize was recovered from several features including extramural pits and a few of these maize samples were directly dated (Wöcherl 2007b). Several samples visually identified as maize were also dated, but their stable carbon isotope ratios were too low for maize and were likely some other genus, and therefore have been excluded from the Ancient Maize Map database (see Wöcherl 2007b:83, Table 7.1).
| 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? |
|---|---|---|---|---|---|---|---|---|---|---|
| 575 | Beta-161854 | MacroSample | cupule | 3080 | 50 | 3296 | 3402 | 3160 | -10.3 | No |
| 576 | Beta-161855 | MacroSample | cupule | 3010 | 40 | 3216 | 3336 | 3078 | -10.0 | No |
| 577 | Beta-164173 | MacroSample | cupule | 2830 | 40 | 2936 | 3073 | 2846 | -12.3 | No |