Moreover, recent research on obsidian tools found at Olmec sites has shown that some of the obsidian obtained by the Olmecs originated near Teotihuacán.

此外，最近针对在奥尔梅克遗址发现的黑曜石工具的研究表明，奥尔梅克人获得的一些黑曜石起源于特奥蒂瓦坎附近。