Tlatilco

Tlatilco
El Comandante · CC BY-SA 4.0 · source
Name	Tlatilco
Coordinates	19° 23′ N, 99° 14′ W
Region	Basin of Mexico
Period	Formative
Built	c. 1700 BCE
Abandoned	c. 200 BCE

Tlatilco Tlatilco was a major Preclassic archaeological site in the Basin of Mexico associated with the Olmec horizon and later Formative traditions centered near the Valley of Mexico and the modern Mexico City metropolitan area. The site produced distinctive ceramics, figurines, and mortuary assemblages that informed comparative studies with sites such as Cuicuilco, Cerro de la Estrella, Teotihuacan, and Monte Albán. Excavations and collections connected Tlatilco with regional interaction networks including San Lorenzo Tenochtitlán, La Venta, Tlapacoya, and other Formative communities.

Geography and Site Layout

The site occupies a lowland confluence near the ancient Lerma River tributaries in the Basin of Mexico adjacent to the modern boroughs of Azcapotzalco and Tlalnepantla. Its layout includes residential compounds, earthen platforms, and ceremonial mounds comparable to features at Cuicuilco and Cacaxtla, with a pattern of household construction paralleling settlements at Tlatelolco and Xochimilco. Stoneworking areas, ceramic kilns, and refuse middens align along grid-like pathways reminiscent of early planning at Teotihuacan and show proximity to obsidian procurement routes from Pachuca.

Chronology and Cultural Phases

Occupational phases span the Early Formative through the Middle Formative (c. 1700–200 BCE) overlapping with the Olmec horizon at San Lorenzo Tenochtitlán and the La Venta phase at La Venta. Ceramic seriation links early phases to the Chupícuaro tradition and later assemblages to the Cuicuilco sphere; transitional strata show affinities with Ocuilan and Tlapacoya sequences. Radiocarbon dates correlate with chronological frameworks used at Monte Albán and Teotihuacan research programs.

Material Culture and Artifacts

Tlatilco is renowned for molded and painted ceramics, polychrome wares, and small anthropomorphic and zoomorphic figurines found in abundance similar to collections from Nayarit and Capacha. Distinctive "double-faced" and composite figurines illustrate artistic conventions paralleled at La Venta and motifs seen on jadeite from Oaxaca and shell from Chiapas. Obsidian tools sourced via the Pachuca and Otumba obsidian networks, copper alloys reminiscent of metallurgical experimentation at West Mexico sites, and ceramic spindle whorls connect craft specialization here to workshops at Malinalco and Tequila region centers.

Social Structure and Burial Practices

Burials at Tlatilco exhibit diversity in grave goods, skeletal treatment, and tomb architecture echoing practices at Cuicuilco and funerary assemblages from Monte Albán tombs. Elite interments included polychrome pottery, shell ornaments from Gulf Coast exchange, and jade artifacts comparable to items at La Venta and Chalcatzingo. Presence of composite figurines in graves suggests identity markers and possible kin-based lineages analogous to mortuary differentiation seen at Teotihuacan and El Tajín.

Economy and Subsistence

Subsistence relied on maize agriculture similar to early sequences documented at Xochicalco, supplemented by beans, squash, and domesticates paralleling evidence from Guila Naquitz and Cerro de las Mesas. Wetland resources from the Basin of Mexico and fish exploitation compare with patterns at Chalco and Xochimilco; obsidian exchange and craft production tied Tlatilco into trade routes used by communities linked to Tlatelolco markets centuries later. Agricultural management strategies reflect parallels in irrigation and raised-field experimentation practiced near Texcoco.

Religion and Ideology

Iconography on Tlatilco figurines and ceramics displays symbols resonant with Olmec-style iconography found at San Lorenzo Tenochtitlán and ritual imagery comparable to offerings from La Venta; motifs include were-jaguar elements, duality themes, and composite beings echoed in art from Chalcatzingo and Teotihuacan later. Ritual paraphernalia, caches, and structured depositional events at the site suggest ceremonial practices akin to those reconstructed for Cuicuilco and Los Reyes Acozac, implying communal rites involving ancestor veneration and fertility cults referenced in ethnographic parallels from Aztec and Maya sources.

Discovery, Excavation, and Research History

Modern awareness began with 19th- and early 20th-century surface finds that entered collections alongside artifacts from Tehuacán and Tlapacoya; formal excavations occurred in the 1920s–1950s under teams associated with institutions such as the National Institute of Anthropology and History (Mexico), Universidad Nacional Autónoma de México, and various European and American museums. Key researchers and curators linked to Tlatilco studies include archaeologists connected to comparative projects at Augustin Tschabalala-era compilations and field programs analogous to surveys at Teotihuacan and stratigraphic studies at La Venta. Ongoing analyses employ techniques developed in laboratories at Smithsonian Institution, Peabody Museum, and university centers involved in isotopic, ceramic petrography, and osteological work similar to studies at Monte Albán.

Category:Preclassic Mesoamerican sites