Copyright Ray Troll, 1999
Helpful hints for remembering the geologic time periods Cambrian to Cretaceous.
Copyright Ray Troll, 1999
The "Having
Trouble" with
Geologic Time Page
You might find this funny. However, it is helpful!
Images by Ray Troll. See his web site at: http://www.trollart.com
Copyright Ray Troll, 1999
Helpful hints for remembering the geologic time periods Cambrian to Cretaceous.
Copyright Ray Troll, 1999
And now for the Paleocene to Holocene.
Copyright Ray Troll, 1999
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