Amateur paleontologist finds rare fossil of fish in Arizona

Growing up, Stephanie Leco often would dig in her backyard and imagine finding fossils of a tyrannosaurus rex. She was fascinated with the idea of holding something in her hand that was millions of years old and would give ...

Petrified Forest adds 26,000 acres of private land

(AP) -- The federal government is gaining control over an even larger expanse of rainbow-colored petrified wood, fossils from the dawning age of dinosaurs and petroglyphs left by American Indian tribes who once lived in ...

Amid a fossil bonanza, drilling deep into pre-dinosaurian rocks

On a high ridge in Arizona's Petrified Forest National Park, paleontologist Paul Olsen sits on the fallen trunk of a 215-million-year-old tree, now turned to stone. The tree once loomed 70 or 80 feet above a riverine landscape ...