For what theory do mesosaurus skeletons provide evedence?

Mesosaurus skeletons provide evidence for the theory of continental drift. This ancient freshwater reptile was found in both South America and Africa, suggesting that these continents were once connected. The distribution of Mesosaurus fossils supports the idea that landmasses have moved over geological time, challenging the notion of species evolving independently on separate continents. This evidence played a significant role in the development of the theory proposed by Alfred Wegener in the early 20th century.