|
|||||||||||||||||||||||||||||||||||||||||
Araucarioxylon arizonicum Triassic Arizona, U.S.A. A well-defined pocket of fungus appears in the lower right corner of this cross-section of Araucarioxylon arizonicum, the most common of the fossil trees found in the Petrified Forest near Holbrook, Arizona. |
|||||||||||||||||||||||||||||||||||||||||
|