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I'm sure that the people of Calixtlahuaca were in touch with Tarascans, but why haven't we found any Tarascan pottery at the site? When we analyze the obsidian, we will probably find that a good part of it comes from sources near Lake Cuitzeo, and it is also very likely that much of our copper-bronze is from Tarascan territory. But the lack of ceramics remains puzzling.