Raxacoricofallapatorius was the home planet of the Raxacoricofallapatorians.
The purple atmosphere of Raxacoricofallapatorious could be seen from space. (Captain Jack’s Monster Files)
In an alternate timeline in which the Cybermen conquered the Borg, Raxacoricofallapatorius was amongst the many worlds the Cybermen conquered, the natives were all cyber-converted
The other native plants of Raxacoricofallapatorius that included the Poppito tree (The Monsters Inside) and the Rakweed ( The Gift). Native animals included the baaraddelskelliumfatrexius beasts (Revenge of the Slitheen) and the Raxacoricofallapatorians, who, socially, divided into different families, such as the Slitheen (World War Three) and the Blathereen. The Museum of the Last Ones had specimens of extinct species from Raxacoricofallapatorius. (he Last Dodo)
Raxacoricofallapatorius was also the centre of the four worlds of the Raxas Alliance. (The Gift) The governing bodies were the Grand Council and the Assembly, (Revenge of the Slitheen) with the former that was led by the Lord Predator. The Slitheen Excursion)
In an alternate timeline in which the Cybermen conquered the Borg, Raxacoricofallapatorius was among the many worlds the Cybermen conquered, the natives all cyber-converted.