HomeAboutLoginWidgets
       
       
         
             
    CAMBRIAN : Explosion of Life on Earth   CAMBRIAN : Explosion of Life on Earth
The Cambrian is the first geological period of the Paleozoic Era, lasting from 541 to 485 million years ago (mya) and is succeeded by the Ordovician. Its subdivisions, and indeed its base, are somewhat in flux. The period was established by Adam Sedg...
 
       
         



 
 
         
          © 2003-2014 Timeline Index