Continent A continent was a large land mass on a planet , typically separated from other continents by geographical features like ocean s or mountain s . Earth . On Earth , there was at first one massive land mass called Pangaea . ( PROSE : " The Sword of Forever " ) This single continent broke apart over the course of millions of years . Eventually its constituent parts settled into a formulation that was known as " Classic Earth " . ( TV : " The End of the World " ) This " version " of the planet had seven continents : Antarctica , South America , North America , Europe , Asia , Africa and Australia . By the year 200 , 100 , the Earth had either a different continental arrangement , or different names for the " Classic Earth " formation . During the Battle of the Game Station , Dalek ships bombed and devastated these continents , which had names like Europa , Pacifica , the New American Alliance and Australasia . ( TV : " The Parting of the Ways " ) The Earth was restored to " Classic " shortly before its final destruction in 5 . 5 / Apple / 26 . ( TV : " The End of the World " ) Major planets . Aside from Earth , there were some planets with which the Doctor or his companion s had repeated contact . Thus detailed points about their continental arrangement was known . Gallifrey . On Gallifrey , the Citadel of the Time Lord s was located on the continent of Wild Endeavour . ( TV : " The Sound of Drums " ) Mondas . Mondas was identical to Earth even down to the size and shapes of its continents , although the continents were upside down , relative to Earth . ( TV : " The Tenth Planet " ) Skaro . On Skaro , the Thal s and the Kaled s , later Dalek s , lived on the same continent . ( TV : " The Daleks " , " Genesis of the Daleks " ) Another account held that the Thals lived on the continent of Davius , and the humanoid Dalek s lived on Dalazar . ( COMIC : " Genesis of Evil " ) Sontar . On Sontar , vast metal structures covered whole continents . These were presumably constructed by the planet ' s natives , the Sontaran s . ( COMIC : " The Betrothal of Sontar " ) Trion . On Trion , the main continent , home to the Trion , was divided into several regions , among them Ohwrotco , Noved , Dnalvelc , Norring , and Tronna . An impossibly vast chasm called the Giant ' s Drop was a popular tourist attraction . Another continent , Slotisland , was reserved for Trion ' s other native species , the Slots . Slotisland was home to the Slotsruins , traces of the vanished civilisation of the Laima , but the Slots kept the Slotsruins behind a force field to keep it secure from outsiders . Slotisland ' s secluded location , in the middle of an ocean that covered most of Trion ' s eastern hemisphere , was undoubtedly helpful in this regard . ( PROSE : " Turlough and the Earthlink Dilemma " ) Minor planets . Information about the continental formation of planets somewhat peripheral to the Doctor and his companions was occasionally gleaned . Arden had more than one continent , it had many bases set up by its human colonists . ( PROSE : " Shadowmind " ) Centuria had a continent called Azlon . ( COMIC : " Drones of Doom " ) The frontier world , Draxine contained the continent of Zelonia . ( AUDIO : " Army of Death " ) On Megerra , the Mega City covered most of the smallest continent . ( PROSE : " Mean Streets " ) Proxima 2 contained at least one continental mass with a prominent mountain range . Proxima City was located on this continent . ( PROSE : " The Face - Eater " ) On Whynot , the continents constantly changed on God ' s whim , including drowning a city ( slowly and with due forewarning to the locals ) because he heard about Atlantis . ( PROSE : " The Also People " ) Things whose size was compared to a continent . The Hoth had bodies the size of small continents . ( PROSE : " Beltempest " ) The Paloma Centre , one of the largest collection of art in the universe , covered an entire continent . ( PROSE : " The War of Art " ) Voracious Craw s grew to huge sizes , looking like a continent when viewed from space . ( PROSE : " Sick Building " ) Weapons that worked on a continental scale . The Ice Warrior , Autek , plotted to create sonic cannon s capable of erasing whole continents . ( COMIC : " 4 - Dimensional Vistas " )