Likely Araucarioxylon arizonicum, Possibly Woodworthia arizonica or Schilderia adamanica. Formation: Very Likely Chinle Formation. Location: Very Likely Arizona. Age: Very Likely Triassic, 240-215 mya. A large piece of Petrified Wood with very defined grains. Unfortunately not much else is known about this piece. Weight 8.1 lbs. Arizona’s Chinle Formation preserves fossils from most of the […]