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Scientists have discovered the oldest colors of the geological record, pigments of a bright pink color dating back 1.1 billion years, rock extracts from the depths of the Sahara Desert in Africa.
The international team of Nur Gueneli and Jochen Brocks of the Australian National University (ANU) obtained the pigments in the Taoudeni Basin, Mauritania, Africa, # 39; West.
500 million years older than other discoveries previously and are molecular fossils of chlorophyll, which were produced by primitive photosynthetic organisms that lived in an ancient ocean that ceased to exist there a long time ago.
Fossils range from blood red to dark purple in its concentrated form, and they show a bright pink hue when diluted.
The researchers sprayed samples of these ancient rocks before extracting and analyzing the molecules of the primitive organisms present in them.
Ancient pigments confirm that cyanobacteria dominate the base of the food chain in the oceans About 1,000 million years ago
Oceans dominated by cyanobacteria began to disappear about 650 million years ago. ; years. This coincided with a series of ecological changes that established a scenario capable of allowing the evolution of complex ecosystems, which led to the appearance of large animals and their evolutionary diversification, including after the emergence of the Human Being
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