Albert 2018, Earliest Microbotanical Evidence for Maize...
Albert 2018, Earliest Microbotanical Evidence for Maize...
Samples that cite this reference
| Lab number | Site | Province / State | Normalized age | δ13C (per mil) |
|---|---|---|---|---|
| Beta-237017 | 20DE17 (Winter) | MI | 1920 ± 40 | -28.9 |
| Beta-237018 | 20DE17 (Winter) | MI | 1860 ± 40 | -28.0 |
| Beta-237019 | 20DE17 (Winter) | MI | 2090 ± 40 | -26.2 |