dinosaur, North America

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 dinosaurs spread across the globe.
Oldest North American dinosaur fossil discovered, dates back 230 million years
This discovery challenges the long-held belief that dinosaurs originated exclusively in the southern supercontinent, Gondwana.
The Oldest Laurasian Dinosaur: New Discovery Rewrites Dinosaur Origin Story
The discovery of Ahvaytum bahndooiveche, a 230-million-year-old dinosaur in Wyoming, reveals dinosaurs existed in the northern hemisphere earlier than believed, challenging past theories. When and how did dinosaurs first appear and spread across the planet over 200 million years ago?
Newly Identified Dinosaur was the Size of a Chicken and May be Oldest in North America
Learn more about this newly named dinosaur and how it's discovery sheds light on dinosaur evolution.
Newly discovered dinosaur could be the oldest ever found in North America, researchers say
Paleontologists say the fossils could prove dinosaurs lived in the northern hemisphere millions of years earlier than previously thought.
Dinosaur discovery in North America is completely rewriting their history
Researchers discovered Ahvaytum bahndooiveche fossils in Wyoming, revealing dinosaurs in Laurasia earlier than believed.
Fossil Discovery Rewrites Global Dinosaur History
With a recent radioisotopic analysis of the fossil specimens dating the remains to around 230 million years old, this tiny 'terrible lizard' named Ahvaytum bahndooiveche is now the oldest-known dinosaur from Laurasia, the Northern Hemisphere land mass of the late Paleozoic supercontinent Pangea.
Prehistoric Bombshell, Oldest North American Dinosaur Fossil Discovered in Wyoming, Scientists Redraw Dino Timeline
Study finds the oldest known North American dinosaur fossil in Wyoming, challenging previous beliefs about dinosaur evolution.
Oldest Equatorial Dinosaur In The World Discovered, Dating Back 230 Million Years
20 Unbelievable Dinosaur Discoveries That Completely Rewrite History
Dinosaurs, the colossal creatures that dominated the Earth millions of years ago, have long fascinated scientists and the public alike. Each new discovery not only ignites imaginations but also deepens our understanding of these prehistoric giants.
Scientists Discover Dinosaur Face That Still Has Its Skin
In an extraordinary paleontological discovery, scientists have uncovered a remarkably well-preserved dinosaur face fossil that includes intact skin. This find provides an unprecedented look into the appearance and biology of these ancient creatures.
230 Million-Year-Old Fossil From Wyoming Challenges Dinosaur Origin Theories
A chicken-sized dino, the oldest known in North America, has thrown a wrench in the widely accepted timeline of early ...
Oldest dinosaur in America? 230-million-year-old previously unknown species upends existing knowled
For years, scientists believed that dinosaurs first emerged in Gondwana—the southern portion of the ancient supercontinent ...
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'North America's Oldest Dinosaur' Discovered, Challenging Dino Origin Story
Researchers have dated the rocks the fossils were found in—using high-precision techniques—to around 230 million years ago, which means the species is one of the oldest known dinosaurs ...