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.
Originally Answered: Did humans exist at the time of dinosaurs? This is really two questions. First, if youâre referring to the Mesozoic period, during which we recognize as dinosaurs such animals as Coelophysis, Brachiosaurus, Allosaurus, Deinonychus, Triceratops, and Tyrannosaurus, then no, humans did not exist then. There is nothing in the fossil record to indicate the presence of humans.