Scientists from Brazil say a recently discovered fossil may help explain how dinosaurs evolved and came to rule the planet. The bones date back to approximately 237 million years ago, making them contemporary to the Middle-Upper-Triassic period of history,

Scientists in Brazil announced the discovery of one of the world's oldest fossils believed to belong to an ancient reptile dating back some 237 million years that could help explain the rise of the dinosaurs.

Paleontologist Rodrigo Temp Muller with Universidade Federal de Santa Maria, working with colleagues in Brazil, has confirmed the finding of one of the oldest dinosauromorph fossils ever uncovered in South America.

Thelatest find in Brazil may provide light on the genesis of dinosaurs. Scientists recently disclosed a fossilised specimen believed to be one of the oldest known, going back around 237 million years.