The three sites – Casa del Minero, Cueva T˙nel, and Cerro Tres Tetas – date to between c.11800 BC and 9500 BC, a period that corresponds to the last stage of the Ice Age, at the end of the Pleistocene period. Casa del Minero and Cueva T˙nel are situated 17km apart on the estate of a ranch named La MarÌa; Cerro Tres Tetas lies a short distance away on a separate ranch called San Rafael.
Evidence from the sites indicates that the weather at this time became comparatively warmer and more arid, with rainfall at less than 200mm each year. Shrubs started to replace tender grasses, supporting a wide variety of animals, some that have since become extinct. At Cueva T˙nel, archaeologists found the remains of Panthera onca, a jaguar, and Hippidion saldiasi, a small horse. The fact that horses existed so long ago in this area amazes many who live in Patagonia now, as the horses bred there today were brought to the Americas by the Spanish in the 16th century. At Casa del Minero, lithic remains associated with hearths were found with a variety of fauna, including the guanaco (a camelid) and the grey fox, both of which are still found there today. But the remains have also been found of some now extinct species: a type of fox, Dusycion avus, and two distant relatives of today’s guanaco, Hemiauchenia paradoxa and Lama gracilis.
Interestingly, however, it would appear that the extinction of any species in the area cannot be blamed on the sudden arrival of humans, as most of the animal remains found on these three sites belong to animals that are still around today – particularly the guanaco. But there is no doubt they did hunt all species, and for a variety of uses: in Cueva T˙nel a femur of the extinct Lama gracilis has been deliberately broken – either to extract the marrow, or to make a bone hammer for softening the meat – and then flaked; and there is evidence of guanaco bones that have been shaped as awls to perforate hides.
This article is an extract from the full article published in World Archaeology Issue 50. Click here to subscribe