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Table 2.3 Evidence for the comparative synchroneity of plant domestication
| Center | Date in 1000s years ago | Site location | Plant remains | Reference |
| Mesoamerica | 10.7 to 9.8 | Oaxaca, Mexico | Squash-pumpkin | Flannery (1986) |
| ~9 | Ocampo Caves, Mexico | Bottle gourd | Harlan (1992a) | |
| Near East | 10 to 9.3 | Jericho | Emmer wheat, Two-rowed barley | Zohary and Hopf1(1988) |
| 9.8 to 8.6 | Tell Aswad | Emma wheat, Einkorn wheat, Pea | Hopf and Zohary (1988) | |
| Far East | 8.0 to 7.0 | Peulang, north China | Broomcorn millet | MacNeish (1992) |
| 8.0 to 7.0 | Yang-shao, north China | Rice | MacNeish (1992) | |
| Gourd, Water Chestnut | Chang (1986) | |||
| Andes* | 9.4 to 9.2 | Guitarrero Cave, | Chile pepper | MacNeish (1992) |
| Western Sierra | Common bean | |||
| 9.0 to 8.0 | Tres Ventanas Cave, | Ullucu | Hawkes (1989) | |
| Upper Lurin region | White potatoes | |||
| North America | 7.7 | Indian Corn | Harlan (1992) |
From Table 2.3 of A.M. Mannion. 1995. Agriculture and Environmental Change - Temporal and Spatial Dimension. John Wiley & Sons
From Figure 1.4 of A. Goudie. 1994. The human impact on the natural environment (4th edition).
From Figure 2.7 of A.M. Mannion. 1995. Agriculture and Environmental Change - Temporal and Spatial Dimension. John Wiley & Sons