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Rock Art Interpretation Centre of the Mountains of Prades

The history of the earth and the origins of life

Recreation of the appearance of La Conca in the Palaeozoic period, with its graptolites and other species

Recreation of the appearance of La Conca in the Palaeozoic period, with its graptolites and other species

This itinerary retraces the geological history of the mountains of Prades and takes us back to the origins of life, some 3,500 million years ago. However, we shall restrict ourselves to the last 420 million years, in which correspond to the formation of the Prades mountains and La Conca.

During the Palaeozoic period, the region formed part of a relatively deep underwater basin, populated by creatures with shells and skeletons and coral-like plants.

Later, during the Mesozoic period, between 245 and 66 million years ago, the Earth’s climate became warmer and the sea shallower. It was a time of changes, with giant reptiles, like the dinosaurs, which proliferated to the point where they came to dominate the planet. Many kinds of fish appeared, the first birds and the first flowering plants. During the Cenozoic era, around 65 million years ago, the region began to emerge from the sea and the main mountain chains began to form, with lakes populated by freshwater fish ringed by exuberant tropical-type vegetation. Towards the end of the Cenozoic, the Earth began to cool and the first hominids appeared.

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