page_title: Altiplano Cundiboyacense
section_title: Prehistory
hierarchical_section_title: Altiplano Cundiboyacense / History / Prehistory
caption_attribution_description: Deutsch: Alter Teil („Sauriergarten Großwelka“) des Saurierparks in Bautzen-Kleinwelka
context_page_description: The Altiplano Cundiboyacense is a high plateau located in the Eastern Cordillera of the Colombian Andes covering parts of the departments of Cundinamarca and Boyacá. The altiplano corresponds to the ancient territory of the Muisca. The Altiplano Cundiboyacense comprises three distinctive flat regions; the Bogotá savanna, the valleys of Ubaté and Chiquinquirá, and the valleys of Duitama and Sogamoso. The average altitude of the altiplano is about 2,600 metres above sea level but ranges from roughly 2,500 metres to 4,000 metres.
context_section_description: The Altiplano Cundiboyacense is formed as part of the uplift of the Eastern Ranges of the Colombian Andes since Neogene times. Hydrothermal activity in fractures of the forming Andean chain left its trace in the form of the many emeralds found in the western and eastern parts of the Altiplano. From the Early Cretaceous until the Eocene, the region of the present-day Altiplano was dominated by a marine environment, as part of the long inland sea of northern South America. In these warm tropical seas a fauna of ichthyosaurs and pliosaurs developed, with important finds (Kronosaurus boyacensis (El Fósil), Muiscasaurus, with four nostrils) in the Paja Formation of Villa de Leyva. During the Late Eocene-Early Oligocene (35-30 Mya) epochs, South America became detached from its longest connected former member of Pangea; Antarctica. The isolation of the South American paleocontinent led to a large biodiversity of New World species.
  The dominating group of top predators and scavengers for decades of millions of years on the continent were the terror birds. Fossils of terror birds have been found throughout South America, with a major collection from current Argentina, where the biggest terror bird, Kelenken, roamed the paleopampas in the early Miocene. The forming Andes created a hilly landscape in the regions bordering the former sea inlet from the proto-Caribbean. Other land animals in the Tertiary were the xenungulate Etayoa bacatensis, evidence for which has been found in 1987 in the Bogotá Formation of the southern Altiplano.
  The biodiversity and former tranquility of the isolated ecosystem changed during the Pliocene, when the Panama Block emerged from the seas and formed a transferable connection with formerly isolated North America. This Great American Biotic Interchange led to a drastic rearrangement of South American fauna. Migrating species from North America replaced many formerly successful South American animals, among which the terror birds.
  The Late Pleistocene of the Altiplano Cundiboyacense has been analysed in detail through various methods based on fossils found on the Altiplano. Pleistocene megafauna inhabited the glacial highlands of the eastern Andean chain. The climate in the glacials and stadials led to the formation of various prehistoric lakes in the valleys of the Altiplano. The Ubaté-Chiquinquirá Valley in the northwest of the Altiplano was covered with a lake, of which the current Lake Fúquene is a retreating remainder. To the extreme northeast, in Soatá, another Pleistocene lake was present. The largest paleolake in the latest Pleistocene was Lake Humboldt or Lake Bogotá covering the Bogotá savanna. The lake, some 4,000 square kilometres (1,500 sq mi) in size, at that time would have been seventy times larger than the biggest lake of Colombia; present-day Lake Tota. Lake Tota is the remnant of a Pleistocene glacial lake higher up the Altiplano to the east. Lake Humboldt is thought to have existed until around 30,000 years ago with as modern remaining water bodies Lake Herrera, wetlands of Bogotá and the Bogotá River. Lake Humboldt had an irregular shoreline with an island in the centre; the present-day Suba Hills.
  The Altiplano Cundiboyacense is regarded one of eleven archaeological regions of Colombia. The earliest evidence of human occupation in the region has been found in Pubenza, to the west of the Altiplano, dating to 16,000 years BP. On the Altiplano, the oldest findings are dated at 12,400 ± 160 years in El Abra. Slightly younger occurrences of settlement by hunter-gatherers have been discovered at Tibitó, with an estimated age of 11,740 +/- 110 years BP and Tequendama dated at 10,920 ± 260 years BP. In the earliest ages of human population prehistoric animals as the Cuvieronius, Haplomastodon and Equus amerhippus were living on the Altiplano.
caption: During the Pleistocene, species of Megatherium with an estimated weight of 4,000 kg (8,800 lb) populated the Altiplano Cundiboyacense