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.
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.
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.
Dinosaurs may have roamed the northern hemisphere millions of years earlier than previously thought
How and when did dinosaurs first emerge and spread across the planet more than 200 million years ago? That question has for decades been a source of debate among paleontologists faced with fragmented fossil records.
Oldest North American dinosaur fossil discovered, dates back 230 million years
This small, chicken-sized dinosaur lived around 230 million years ago. Interestingly, this pushes back the timeline for dinosaur presence in the northern hemisphere by millions of
'North America's Oldest Dinosaur' Discovered, Challenging Dino Origin Story
But this is where Ahvaytum may rewrite the origin story because it originates from the North American landmass, which once formed part of Laurasia. At roughly 230 million years old, it is comparable to the oldest known dinosaurs from Gondwana.
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 new research.
Small Chicken-Sized Dinosaurs Roamed the Northern Hemisphere Millions of Years Earlier Than Expected
For decades, paleontologists have debated how and when dinosaurs emerged and spread across the planet more than 200 million years ago. The prevailing theory suggested that dinosaurs first arose in the southern part of the ancient supercontinent Pangaea,
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 ...
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 ...
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New dinosaur, Archaeocursor asiaticus, hints at early Gondwana to Laurasia migration
A multi-institution investigation in China has introduced the world to Archaeocursor asiaticus, and the research suggests an earlier dispersal event of ornithischians from Gondwana to Laurasia ...