Velociraptor

Velociraptors were a genus of small dinosaur, smaller than a human. They lived in Mongolia on Earth during the Cretaceous period.

History
The Fountain of Youth revived a Velociraptor, which shrank and killed with the Tissue Compression Eliminator. However, the velociraptor then landed back in the Fountain and was revived again, albeit miniscule in size due to the Compression Eliminator's use on it. (PROSE: A Town Called Eternity)

Whilst looking for Ace in Cretaceous Mongolia, the Seventh Doctor saw a Velociraptor. (PROSE: Living in the Past)

Bernice Summerfield once encountered an intelligent Velociraptor called Patience. (PROSE: The Sword of Forever)

On the alternate Earth ruled by the Silurians, the Velociraptor was one of the creatures that the Silurians bought back from extinction. They were allowed to roam freely and were presumably used for hunting by the Silurians. (PROSE: Blood Heat)

The Velociraptor was worth 250 points in the I-Spyder Book of Earth Creatures if it was spotted. The last one was held in the Museum of the Last Ones. (PROSE: The Last Dodo)

Behind the scenes
Velociraptors from Dinosaurs on a Spaceship appear as enemies in the video game Doctor Who: Legacy.