Compare & Contrast: Egypt & China. Ancient Egypt and ancient China had many cultural differences and similarities. While Chinaâs form of government is monarchy, Egyptâs is theocracy. As for their religious beliefs, even though theyâre both polytheistic, they have different Gods. Another difference in the two civilizations is the environment.
Palaeontologists have found what is likely to be the oldest known dinosaur, filling in a yawning evolutionary gap. A study in Biology Letters describes Nyasasaurus parringtoni, a new species from 10-15 million years before the previous earliest dinosaur specimens.
How Long Ago Did Dinosaurs Live: The Triassic Period. The Eoraptor, shown above, was one of the earliest dinosaurs. As weâve seen, the earliest estimate as to when dinosaurs appeared was around 243 million (243,000,000) years ago. Of course, dinosaurs didnât just appear out of thin air.