Scientists think they know where the missing pieces to the puzzle of the evolution of dinosaurs could be found.

Archaeopteryx, long considered the earliest fossil bird, could be knocked off its perch by Baminornis zhenghensis, which ...

Many think dinosaurs first emerged on land well south of the equator that now forms part of Argentina and Zimbabwe, but they may have actually arisen in tougher conditions near the equator ...

Non-bird dinosaurs lived between about 245 and 66 million years ago, in a time known as the Mesozoic Era. This was many millions of years before the first modern humans, Homo sapiens, appeared.

based on the locations of the currently oldest-known dinosaur fossils, the evolutionary relationships among these early forms and Earth's geography during the Triassic Period. This locale spans ...

Some dinosaurs were getting bigger by the end of the Triassic. Climate changes during the period underwrote a vegetation boom that provided some previously omnivorous dinosaur lineages with enough ...

based on the locations of the currently oldest-known dinosaur fossils, the evolutionary relationships among these early forms and Earth's geography during the Triassic Period. This locale spans the ...