The ENTIRE HISTORY of EVERYTHING

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The ENTIRE HISTORY of EVERYTHING

• (Abridged)

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Major Events

• Formation of universe.                       
  About 10 - 16 BYBP
• Formation of the Earth.                     
  About 4 - 6 BYBP
• Appearance of simple cells.                 
  About 3.5 - 4 BYBP (including cyanobacteria)
•  Appearance of complex cells, including
  eukaryotic algae.                About 1 - 3 BYBP
  
• Appearance of sex.                              
  About 1 - 3 BYBP

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Major Events

• Appearance of multicellular life including
  colonial Eukaryotic algae.  About 1BYBP
• Cambrian explosion.             About 500 MYBP
  ( 0.5 BYBP)
•  First land plants. (Simple mosses and
  relatives)                   About 450 MYBP
•  First ferns and relatives                      
  About 380 MYBP
•  First conifers                                   
    About 350 MYBP
• Major extinction, end of Permian About 350
  MYBP

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Major Events

•  First Angiosperms                           About
  200 MYBP
• Major extinction, end of Mesozoic  About 60 MYBP
• Appearance of Homo Sapiens.          lt  1 MYBP
• Classes start, summer quarter, 2nd term July 26th
  2004
• See also here (timeline graphic).

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Atmosphere and Continents

• At first Hydrogen, (H2), Helium (He) N2 Methane
  (CH4) Ammonia (NH3). No oxygen.
• Later organic compounds, then as life began to
  diversify, oxygen. Produced at first by
  photosynthetic cyanobacteria. Free oxygen was
  toxic to many species of early bacteria, this may
  have encouraged endosymbiosis.
• The theory of plate tectonics has allowed
  scientists to reconstruct patterns of continental
  drift.

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Ohio Geology

• Good record of Paleozoic and Ice age (Cenozoic)
• Poor record of Mesozoic (unconformity)
• Paleozoic sediments exposed with age increasing
  East gt West.
• Presence of up to 100 discernable cyclothems.
• The oceans come in, the oceans go out. The
  mountains go up, the mountains come down. Animals
  and plants live, animals and plants die. Repeat.