Page 29 - The Restless Earth Fossils
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2 Fossils
A 50-million-year-old Eocene Age fish fossil (Priscacaraliops) was found
at the Green River Formation near Kemmerer, Wyoming.
compressed and heated the remains until they became dark car-
bon “ghosts” of the original animal or plant. These carbon films
often display rich patterns and fine detail, although sometimes
they do look more like ancient road kill.
on BecoMing a rocK
Visitors to Arizona’s Petrified Forest see what most people think
of when they think of fossils: once-living things literally turned
RE_Fossils2print.indd 28 3/17/09 8:59:00 AM