Phases
Christine Niederberger Betton, in her landmark 1987 archaeological study of the Valley of Mexico, identified two phases of the Tlatilco culture:
- Ayotla (Coapexco) phase, 1250 - 1000 BCE
- Manantial phase, 1000 - 800 BCE.
The Olmec-style artifacts appear suddenly, abundantly, and pervasively in the archaeological record at the outset of the Ayotla (Coapexco) phase.
At the end of the Ayotla, however, around 1000 BCE, there is another abrupt change in ceramics: figurines of costumed males give way to those of nude females, and Olmec-derived iconography evolves into a more native appearance, changes likely reflective of a change in religious ideas and practices.
By 800 BCE, the hallmarks of the Tlatilco culture fade from the archaeological record. By 700 BCE, Cuicuilco had become the largest and most dynamic city in the Valley of Mexico, eclipsing Tlatilco and Tlapacoya.
Read more about this topic: Tlatilco Culture
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