Around 450 million years ago, continued continental rifting caused a large basin to open up in the vicinity of what is now the south-western Cape.
Lwa minwaha ya 450 million yo fhelaho, shango ḽa isa phanḓa ḽa ita uri fhethu huhulwane hu vulee kha fhethu hune ha vha south-western Cape ṋamusi.