Hederon

The Hederons were one of several species which were erased by the Last Great Time War, so utterly removed from the timelines that their names only existed in the footnotes of old Time Lord records, later being mentioned in a historical chronicle as well, with no one even recalling that they had ever existed in the first instance. (PROSE: The Whoniverse)
Category:Species in the Last Great Time War
Category:Species wiped out by retro-genocide