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Panthalassa, also known as the Panthalassic or Panthalassan Ocean, (from Greek Ïá¾¶Î½ all and Î¸Î¬Î»Î±ÏÏÎ± sea), was the superocean that surrounded the supercontinent Pangaea. During the PaleozoicâMesozoic transition c. 250 Ma it occupied almost 70% of Earth's surface.
No Oceans are surrounded by North America however the Atlantic and Pacific Oceans surround North America. Also, the Hudson Bay is partially surrounded by North America. It is â¦ a Bay, however, not an ocean. Y'all missed one. The Gulf of Mexico also surrounds NA.