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.
It is not transitional between actual dinosaurs and Paraves. Velociraptor is a non-avian dinosaur closely related to birds. While velociraptors and the more ancient members of its clade had feathers, there is no direct evidence that they could fly and their wing feathers could be used for other purposes.ut it has become increasingly clear that the story of how dinosaurs begat birds is much more subtle. Discoveries have shown that bird-specific features like feathers began to emerge long before the evolution of birds, indicating that birds simply adapted a number of pre-existing features to a new use.