‘Araucarioxylon arizonicum’
Triassic period
Chinle Formation, Arizona, USA
Dimensions (height x width x depth): 20 ¾ x 24 ¾ x 14 ½ in. (52.7 x 62.9 x 36.8 cm)

This petrified wood log section was submerged in the Chinle Formation in Arizona beneath volcanic sediment for millions of years. During its time underground, mineral-rich water permeated the interior of the log which produced the unique and compelling coloring seen here with its vibrant shades of red, orange, ochre, white and black. In this example, the bark has been left in its natural state, while the exposed top has been beautifully polished. This piece measures 20 ¾ x 24 ¾ x 14 ½ in. (height x width x depth).