How might the idea of continental drift explain 300 million years ago glacial grooves on four separate southern continents?

Continental drift, proposed by Alfred Wegener, suggests that continents were once part of a single supercontinent called Pangaea. Around 300 million years ago, this landmass experienced glaciation, leading to the formation of glacial grooves that can be found on now-separated southern continents like South America, Africa, Australia, and Antarctica. As these continents drifted apart, they carried the evidence of past glaciation with them, explaining the similar glacial grooves observed across these distant lands today. This alignment of geological features supports the theory of continental drift and the historical connectivity of these regions.