Describe the difference between Pangaea and Panthalassa.

As proper nouns the difference between pangaea and panthalassa. is that pangaea is a supercontinent that included all the landmasses of the earth before the triassic period and that broke up into laurasia and gondwana while panthalassa is (geography) the prehistoric ocean surrounding pangaea.

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.