USB Type-A. Known as your standard-A, a USB Type-A is the first original design for a USB port that has a flat and rectangular shape. It is mainly used to connect and control other USB devices such as saving data on external storage devices and using a mouse and keyboard.
Cretaceous Period. The Cretaceous period began at the end of the Jurassic period approximately 144 million years ago and extended longer than any period (79 ma) to approximately 65 million years ago. The word Cretaceous comes from the word for chalk and the geological remains do indeed contain heightened chalk deposits.
Best Answer: According to a PBS website, about 165 million years (From about 230 million years ago to about 65 million years ago ... for a duration of 165 million years.) Dinosaurs existed between 230 million years ago and 65 million years ago, but none of the known dinosaur species existed for this entire time period.