Archeozoics   Cenozoics   Lower Paleozoic

Mesozoics   Precambrians   Upper Paleozoics

1. Cretaceous Period
   A part of the world now occupied by Mongolia provides the setting for this 72-million-year-old scene
   http: //amnh.org/exhibitions/Fossil_Halls/Timel...
   
   
2. Devonian Period
   Devonian Period saw the rise of the first terrestrial insects and invertebrates.
   http: //gallery.in-tch.com/~earthhistory/devonian%2...
   
   
3. Geologic Time
   Learn about the geologic periods such as Cenozoic Era Mesozoic Era Paleozoic Era Precambrian or Cryptozoic Eon
   http: //cotf.edu/ete/modules/msese/earthsysflr/...
   
   
4. Geologic Time Line
   A modified geologic time line.
   http: //gallery.in-tch.com/~earthhistory/geologic%2...
   
   
5. Geologic Timelines
   The vastness of geologic time proves to be mostly incomprehensible to us. One useful tool to improve our understanding involves shrinking all of Earthhistory into a single half-day, with our planet's birth being at midnight, and present time being noon.
   http: //seaborg.nmu.edu/earth/timelines.html
   
   
6. Geology Entrance
   A summary of geology and geological time.
   http: //ucmp.berkeley.edu/exhibit/geology.html
   
   
7. Ice Age
   Learn about how, what and why of the Ice Age.
   http: //museum.state.il.us/exhibits/ice_ages/
   
   

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