Australian marsupials have direct fossil links to marsupial opossums found in the americas. yet the modern marsupials in australia are markedly different from their american relatives. how does the breakup of pangaea to explain these differences?

The break up of the Pangaea made it possible for fossils of the same organisms to be discovered in rocks of the same age in South America, India, Antarctica, Africa, and Australia. These continents are divided by ocean barriers and the same situation can be said for marsupials found in America and Austrialia. Before the Pangaea's breakup, marsupials were able to freely roam around and the Pangaea's breakup caused marsupials to change locations and climates, which caused them the need to adapt to new areas, which is why we can see the differences.