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,

By Sergio Queiroz and Diego Vara SAO JOAO DO POLESINE, Brazil (Reuters) - 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.

The most complete egg has a maximum length of only 29 mm, setting a new record for the smallest dinosaur egg fossil, Lou said. The previously known smallest dinosaur egg fossil was found in China's Zhejiang Province, measuring approximately 45.5 mm X 40.4 mm X 34.4 mm in dimensions.

A fossilized dinosaur egg measuring just 29 millimeters in length, discovered in Ganzhou, East China's Jiangxi Province, has been identified as the smallest complete egg fossil known to date and belonging to a new species within the family of oval-shaped dinosaur eggs,

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.

In the heat of southern Brazil, long before dinosaurs ruled the world, a small reptile wandered the land, oblivious to the history it was about to shape. Now, nearly 237 million years later, that creature’s fossil has resurfaced,

Brazilian researchers discovered a 237-million-year-old reptile fossil that might be a precursor to the dinosaur, though only the size of a small dog. As one of the world’s oldest fossils, they discovered a new species of silesaurids – an extinct family from the Late Triassic period.