page_title: Palaeoproterozoic
hierarchical_section_title: Palaeoproterozoic
caption_attribution_description: Deutsch: Stromatolith Fundort: östlichen Anden südlich von Cochabamba, Departamento Cochabamba, Bolivien. Zeitalter&#160;: Proterozoikum - 2.500 Millionen Jahren bis ca. vor 542 Millionen Jahren. Diese Datierung wurde korrigiert: Maastrichtium, Kreide, etwa 70 Ma. Größe: 38,5x31x2,5 cm English: Stromatolite Stage&#160;: Proterozoic from 2 500 to 542 ± 1 Ma (million years ago). This dating is now changed by new studies: Maastrichtian, about 70 Ma. Locality: Eastern Andies South of Cochabamba, District of Cochabamba, Bolivia Size&#160;: 38,5x31x2,5 cm Français&#160;: Stromatolithe Etage&#160;: Protérozoïque 2 500 à 542 ± 1 million d’années. Cette datation est aujourd’hui remise en cause par de nouvelles études: Maastrichtien, vers 70 Ma. Localité: Est des Andes, Sud de Cochabamba, District de Cochabamba, Bolivie Taille: 38,5x31x2,5 cm
context_page_description: The Palaeoproterozoic was the first era of the Proterozoic eon. It came after the Archaean eon, and lasted from 2500 to 1600 million years ago.
  In the Palaeoproterozoic, there was a huge production of stromatolites by cyanobacteria. The first unicellular eukaryote organisms also appeared in the fossil record.
  The first supercontinent grew, and some of the rocks were normal sedimentary rocks, not metamorphosed.
context_section_description: The Palaeoproterozoic was the first era of the Proterozoic eon. It came after the Archaean eon, and lasted from 2500 to 1600 million years ago (mya).
  In the Palaeoproterozoic, there was a huge production of stromatolites by cyanobacteria. The first unicellular eukaryote organisms also appeared in the fossil record.
  The first supercontinent grew, and some of the rocks were normal sedimentary rocks, not metamorphosed.
caption: Palaeoproterozoic stromatolite from Bolivia, South America
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