Petrified wood forms through a process known as permineralization ... Dinosaurs roamed the land, and rivers and lakes ...

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 ...

The petrified wood in Petrified Forest comes from the Triassic ... in Arizona and around the country at www.nps.gov. A dinosaur species whose only known fossil was found in 1994 in Cochise County ...