What information did wegener not have that would have strengthened his argument?

One key piece of information Wegener did not have was the mechanism behind the movement of the continental plates, which is now explained by plate tectonics. Additionally, he lacked detailed evidence from the ocean floor, such as magnetic striping patterns, that further support the theory of continental drift. Finally, Wegener's theory would have been strengthened by more comprehensive fossil and rock evidence to show past connections between continents.