The Petrified Forest may not appeal to everyone, stone log fragments
scattered over a rather remote and otherwise barren section
of Arizona desert. During the Triassic Period some 200 - 250
million years ago northeastern Arizona was located near the
equator and on the southwestern edge of the landmass known as
"Pangea". Over time, Rivers carried dead trees to
the lowlands. Most of the trees decomposed and disappeared,
but a few trees under the correct conditions were petrified,
and it is these fossilized logs we see today. Most of the fossilized
logs are from a tree called Araucarioxylon arizonicum, along
with two others, Woodworthia and Schilderia, which are in smaller
quantities, all 3 species are now extinct. |
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