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.
146 to 65 million years ago. 1  Pangaea continued to separate into smaller continents. 2  A wide variety of dinosaurs roamed the land. 3  Birds flourished and spread all over the globe. 4  Flowering plants developed. 5  Mammals flourished. 6  Dinosaurs became extinct by the end of the period. The extinction, the second largest of all time, marked the end of the Age of Reptiles and the beginning of the Age of Mammals. Dinosaurs that lived during the Cretaceous period include: