EVOLUTION OF EARTH By brandonkasan Mar 7, 2009 4.6 billion yrs ago the Earh formed!!!! Mar 8, 2009 3.8 billion yrs ago prokaryotic cells discovered! Mar 9, 2009 3 billion yrs ago: creation of photosynthesis Mar 10, 2009 1-2 billion yrs ago complex cells(eukaryotic cells) discovered Mar 12, 2009 600 million yrs ago first animal "species" found Mar 13, 2009 570 million yrs ago Anthropods discovered Mar 14, 2009 475-500 million yrs ago fish land insects found Mar 15, 2009 300 million yrs ago amphibians and reptiles discovered Mar 16, 2009 65 million yrs ago dinasours extinct Mar 18, 2009 200,000 yrs ago HUMAN MANKIND Mar 20, 2009 25,000 yrs ago neanderthals died out Mar 22, 2009 PRESENT DAY LIVING