Glossopteris fossils said is one of the evidences/proof that the continents in ancient time is only in one large land mass called pangaea.Wegener stated that this kind of flora species cannot bring across the sea by the wind because this species is seed type so that it is too much heavy to bring on other continent specially in South Africa so he said that one time the continents is at one land mass only and the position of those continents only change as the year past...thats all!I hope that I already help you in your assignment.. :)