Abiotic production of biomolecules
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Abiotic production of biomolecules. A possible “RNA world” scenario. Hadean Eon: 3800 Ma and earlier. Archean Eon: 3800 Ma – 2500 Ma. Proterozoic : 2500 Ma – 542 Ma.

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Abiotic production of biomolecules

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Abiotic production of biomolecules

Abiotic production of biomolecules


Abiotic production of biomolecules

A possible “RNA world” scenario.


Abiotic production of biomolecules

Hadean Eon: 3800 Ma and earlier.


Abiotic production of biomolecules

ArcheanEon: 3800 Ma – 2500 Ma


Abiotic production of biomolecules

Proterozoic: 2500 Ma – 542 Ma

Acritarchs are small organic fossils, present from approximately 3,200 million years ago to the present. Their diversity reflects major ecological events such as the appearance of predation and the Cambrian explosion.


Abiotic production of biomolecules

PhanerozoicEon: 542 Ma – present

The Phanerozoic Eon, literally the "period of well-displayed life", marks the appearance in the fossil record of abundant, shell-forming and/or trace-making organisms. It is subdivided into three eras, the Paleozoic, Mesozoic and Cenozoic, which are divided by major mass extinctions.


Abiotic production of biomolecules

Paläo-geologische Zeitskala


Abiotic production of biomolecules

Paläo-Temperature


Abiotic production of biomolecules

Extremophile


Abiotic production of biomolecules

The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near-extinction of oxygen-intolerant organisms.

According to endosymbiotic theory, chloroplasts in plants and eukaryotic algae have evolved from cyanobacterial ancestors via endosymbiosis.


Abiotic production of biomolecules

Colourful thermophilic archaebacteria stain in Midway Geysir Basin


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