Today, scientists realize that the areas containing these ancient glacial features were joined together as a single super continent (Pangaea) located at latitudes far to the south of their present positions. Later, this landmass broke apart, and its pieces, each moving on a different plate, migrated toward their present locations (figure 6.24). It is now understood that during the geologic: past, plate movements accounted for many dramatic climatic changes as landmasses shifted in relation to one another And moved to different latitudinal positions. Changes in oceanic