Goranian

Goranians, known collectively as the Gorath, were a species who were inducted into the Imperium in 5162 and who, three years later, waged war on the Imperium. They occupied the Metropol between 5170 and 5182, a time known as the First Interregnum. The Gorath were rendered extinct in the year 5181 from the effects of a nanite-based weapon that dissolved their bodies from the inside out. The nanites remain on the Gorath homeworld, Gora Prime, in the present day, where they are in the process of consuming all of the mass of the planet.