Antelope

Antelope were Earth ruminants which K9 once encountered on a planet in another dimension partially inhabited by ex-Tellac miners. They lived in herds alongside other Earth animals from widely varying periods of evolutionary history. (PROSE: K9 and the Missing Planet)

The Second Doctor and Jamie once used a herd of animals — which included antelopes — to stampede a group of Quarks. (COMIC: Jungle of Doom)

Antelopes were hunted for food in Mesopotamia. (PROSE: Timewyrm: Genesys)

The Bluebuck was a type of antelope. (PROSE: The Last Dodo)

In an alternate timeline, antelopes were the primary food for the Baryonyx, a species that the Silurians brought back from extinction, which were kept by Morka in his private park. Baryonyx would kill and feed on the antelope, then lions would feed on the scraps, with both species not attacking each other. (PROSE: Blood Heat)

Behind the scenes
In the real world, antelope is a broad term to refer to those bovids which are not cattle, sheep, buffalo, bison, or goats. There are 91 types of antelope, but the DWU has largely refrained from specifying any of them. However, illustrations with K9 and the Missing Planet and Jungle of Doom do rule out scores of species in the family from that particular reference.