Just-discovered species walked the Earth 250 million years ago
(Newser) -
Researchers analyzing footprints in 250 million-year-old Polish rock say they've identified the oldest dinosaur-like species ever discovered. Prorodatcylus walked on four legs, was about the size of a house cat, and lived in the shadow of its "more diverse, successful, and abundant crocodile-like cousins" for millions of years, according...