Vulcan-Romulan War

The Vulcan-Romulan War was a violent conflict in Vulcan history between the followers of Surak and his philosophy, and his opponents, refered to as "those who marched beneath the raptor's wings," who later left Vulcan and settled the planet Romulus. This war lasted for a hundred years. (VOY episode: "Death Wish"; ENT episode: "Kir'Shara")

One of the battlefronts of this war was the planet Tyrus III. The indigenous saurian species was wiped made extinct during the conflict. (NF short story: "'Q'uandry")