Chemical sample 34


Excavation area D5-31, Stratum X (Powis et al. 2011, Table S3).

Phase Date

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References Cited

Powis, Terry G., Ann Cyphers, Nilesh W. Gaikwad, Louis Grivetti and Kong Cheong
     2011    Cacao Use and the San Lorenzo Olmec. Proceedings of the National Academy of Sciences, USA 108(21):8595-8600.


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