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Petrified Wood: A Journey From Tree to Stone
Petrified wood refers to a fossil formed when the organic ... a dense forest loaded with conifers and about a dozen other ...
National Geographic news10y
See the Enchanting, Ancient Forest in the Middle of a Desert
Scientists have identified several hundred species of fossil plants and animals ... the major concentrations of the famous colorful petrified wood; in the north rise the colorful banded badlands ...