Geologic Timeline

The following is a very simplified geologic timeline of Xi'ialoa. This will be fleshed out more in the future.

• 4.7 bya: Solar system formation from supernovae.

• 3.6 bya: Planetary formation.

• 3.5 bya: Impact event, early panspermia, early water/iron reactions form hydrogen atmosphere.

• 3.1 bya: RNA-esque genetic systems, first protocells.

• 2.7 bya: Early bacteria, first methanogens.

• 2.2 bya: Mantle overturn event, terrestrial prokaryotes.

• 1.9 bya: Hydrogen regime causes global cooling, prokaryotic life rapidly adapts.

• 1.8 bya: Hydrogenic bacteria proliferate.

• 1.4 bya: Rise in O2, minor extinction of hydrogenic bacteria.

• 600 mya: Glacial period and formation of methane vents.

• 500 mya: Hydrogen atmosphere stabilizes, major taxa evolve.

• 350 mya: Life diversifies, first complex organisms.

• 300 mya: First Pignia, Secara, and Mussiria species, glacial event.

• 200 mya: Major diversification of life, minor climate fluctuations, Magnata gains dominance.

• 50 mya: Extinction event caused by hydrogen imbalance.

• 17 mya: Magnata diversifies, continents approach present positions. 

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