• Jasper Forest is magical in twilight, particularly the logs on stone pedestals

    Petrified Forest

    National Park Arizona

Kingdom Animalia (fossils)

phytosaur bones

Phytosaur skeleton

NPS Photo

Linnaean taxonomy of Late Triassic Animals of Petrified Forest National Park
Compiled by W.G. Parker December 7, 2004
REVISED March 14, 2009

Kingdom Animalia

Did You Know?

closeup of colorful agatized petrified wood

Petrified wood at Petrified Forest National Park is almost solid quartz, weighing in at 168 pounds per cubic foot. It's so hard, you can only cut it with a diamond tipped saw! More...