acadian orogeny africa afro-eurasia alpine orogeny americas antarctica arctica ardennes asia asiamerica atlantica atlantis avalon peninsula baltica belgium caledonian orogeny cambrian canada carboniferous congo craton continent cretaceous devonian earth england euramerica eurasia europe france geology germany gondwana iceland ireland jurassic kalahari craton kazakhstania kenorland kerguelen plateau laurasia laurentia list of supercontinents london-brabant island maine miocene neoproterozoic new brunswick new england north america north carolina nova scotia oceania ordovician pangaea pangaea ultima pannotia permian pliocene poland prince edward island pyrenees rodinia silurian supercontinent terra australis terrane united states vaalbara variscan orogeny volcanic arc wales western europe