"Tellurian" was a term used by various aliens to refer to humans, or Earthlings specifically. The term was utilised in the Third Zone in the 20th century, (TV: The Two Doctors) by humans on Pluto in the distant future (TV: The Sun Makers) and in the Galactic Federation in 3985. (PROSE: Legacy)
Time Lords, (PROSE: Cat's Cradle: Time's Crucible) Volgroks (AUDIO: The Day of the Comet) and Inter Minorians also used this phrase. (TV: Carnival of Monsters)
K9 compared the Tarl of E9874 to Tellurian Neanderthals. (AUDIO: The Exxilons)