<P> Evidence for the movement of continents on tectonic plates is now extensive . Similar plant and animal fossils are found around the shores of different continents, suggesting that they were once joined . The fossils of Mesosaurus, a freshwater reptile rather like a small crocodile, found both in Brazil and South Africa, are one example; another is the discovery of fossils of the land reptile Lystrosaurus in rocks of the same age at locations in Africa, India, and Antarctica . There is also living evidence--the same animals being found on two continents . Some earthworm families (e.g. Ocnerodrilidae, Acanthodrilidae, Octochaetidae) are found in South America and Africa, for instance . </P> <P> The complementary arrangement of the facing sides of South America and Africa is obvious, but is a temporary coincidence . In millions of years, slab pull and ridge - push, and other forces of tectonophysics, will further separate and rotate those two continents . It was this temporary feature which inspired Wegener to study what he defined as continental drift, although he did not live to see his hypothesis generally accepted . </P> <P> Widespread distribution of Permo - Carboniferous glacial sediments in South America, Africa, Madagascar, Arabia, India, Antarctica and Australia was one of the major pieces of evidence for the theory of continental drift . The continuity of glaciers, inferred from oriented glacial striations and deposits called tillites, suggested the existence of the supercontinent of Gondwana, which became a central element of the concept of continental drift . Striations indicated glacial flow away from the equator and toward the poles, based on continents' current positions and orientations, and supported the idea that the southern continents had previously been in dramatically different locations, as well as being contiguous with each other . </P>

What is the name for the supercontinent in the continental drift hypothesis