Sabana Formation
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The Sabana Formation is a geological formation of the Bogotá savanna, Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consists mainly of shales with at the edges of the Bogotá savanna lignites and sandstones. The Sabana Formation dates to the Quaternary period; Middle to Late Pleistocene epoch, and has a maximum thickness of 320 metres (1,050 ft), varying greatly across the savanna. It is the uppermost formation of the lacustrine and fluvio-glacial sediments of paleolake Humboldt, that existed at the edge of the Eastern Hills until the latest Pleistocene.
Paleogeography of the Pleistocene by Ron Blakey
The Sabana Formation overlies the Tilatá Formation with type locality the Sisga Reservoir in Chocontá
The Sabana Formation was deposited in a fluvio-glacial environment, extensive in the central part of the Bogotá savanna and narrow in the northern region
Megatherium
Checua
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Checua is a preceramic open area archaeological site in Nemocón, Cundinamarca, Colombia. The site is located 7 kilometres (4.3 mi) north of the town centre. At Checua, thousands of stone and bone tools, stone flakes and human remains have been found, indicating human occupation from around 8500 to 3000 years BP.
The landscape around Nemocón is hilly with flat valleys. Checua is an open area settlement, located north of the urban centre
As at Tequendama and Aguazuque, abundant remains of the domesticated guinea pig have been found at Checua