Pangea was the supercontinent that existed during the Mesozoic Era. Pangaea - Wikipedia. Panthalassa was the ocean that surrounded it. Panthalassa - Wikipedia. So during that time we had both a supercontinent and (if I may be a bit fanciful here) a super-ocean. read more
Panthalassa, also known as the Panthalassic or Panthalassan Ocean, (from Greek πᾶν "all" and θάλασσα "sea"), was the superocean that surrounded the supercontinent Pangaea. During the Paleozoic—Mesozoic transition c. 250 Ma it occupied almost 70% of Earth's surface. read more