Vardon-Kosnax War
From Tardis Wiki, the free Doctor Who reference
The Vardon-Kosnax War was a war that took place in 140 million years BC, fought between the Vardon and the Kosnax. The planet Xeriphas was caught in the crossfire of the war and devastated by radiation. The native Xeraphin, who were poisoned, merged into a gestalt intelligence and travelled in a ship to Earth, which at the time was nearing the end of its Jurassic period. (TV: Time-Flight)
