ocr: Olmec Heartland Gulf of Mexico Tlatilco Guadalupe Victoria Coapexco Chalcatzingo Las Bocas BE B) Tres Zapotes 00 B La Venta Teopentecuanitlan. San Lorenzo, B Oguaer Selbai SJ Padre Piedra Maya Highland 90 SOURCES OF TRADED ITEMS B basalt cacao 09 EI Chayal 0 Copan' - obsidian jade iron ore Abaj Takallko Kaminaljuyd - serpentine spondylus shells Chalchuapa marine resource (stingray spines, turtle shells) Pacific Ocean
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