TY  - GEN
AU  - Piperno,D R
AU  - Flannery,K V
TI  - The earliest archaeological maize (Zea mays L.) from highland Mexico: new accelerator mass spectrometry dates and their implications
SN  - 0027-8424
PY  - 2001///0419
KW  - Agriculture
KW  - Archaeology
KW  - Biological Evolution
KW  - Fossils
KW  - Humans
KW  - Mass Spectrometry
KW  - methods
KW  - Mexico
KW  - Time Factors
KW  - Zea mays
KW  - chemistry
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1073/pnas.98.4.2101
ER  -