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230 million-year-old dinosaur is oldest ever discovered in North America — and changes what we know about how they conquered Earth
A newfound "chicken-size" dinosaur, recently unearthed in Wyoming, changes what paleontologists thought they knew about how ...
Dinosaur history rewritten by fossil discovery of chicken-sized dinosaur, experts say
Dinosaurs inhabited the Northern Hemisphere millions of years earlier than scientists previously thought, according to the ...