Geoscience Reference
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139
139 Araucarioxylon
arizonicum, a petrified trunk
from the Petrified Forest
National Park. Diameter 1 m
3.3 ft.
140
140 Araucarioxylon
arizonicum, a petrified trunk
from the Petrified Forest
National Park showing growth
rings on transverse section.
Diameter 1 m 3.3 ft.
141
141 Araucarioxylon arizonicum,
a polished section from the
Petrified Forest National Park
PC. Diameter 1 m 3.3 ft.
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