Parentheses and brackets ( ) [ ] Round Brackets Round brackets (also called parentheses, especially in American English) are mainly used to separate off information that isnât essential to the meaning of the rest of the sentence. If you removed the bracketed material the sentence would still make perfectly good sense.
Most of the facts about the Velociraptor are now well known. This is due to the discovery of several fossils. It lived during the Cretaceous period and became extinct 70 to 80 million years ago. Like the other dinosaurs it likely perished when a comet / asteroid struck the Earth at the time.
Dinosaurs lived from the Triassic to the Jurassic to the Cretaceous, which means that they lived in an entire era called the Mesozoic. Dinosaurs lived 230-65 million years a â¦ go. In the Mesozoic era.inosaurs existed from roughly 220 to 65 million years ago. The first Homo sapiens (modern humans) came into existence 250,000 years ago. This would mean that dinosaurs preceded humans by over 64 million years.