A 125-million-year-old fossil reveals a newly discovered dinosaur covered in unusual spikes scientists have never seen before.
A 125-million-year-old fossil reveals a newly discovered dinosaur covered in unusual spikes scientists have never seen before.
Some 140 million years ago, during the Early Cretaceous period, dinosaurs roamed northeastern Brazil, leaving behind fossilized footprints that give the area its popular name—Dinosaur Valley. Local ...
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