after the beaufort period, southern africa (still part of gondwana) became an arid sand desert with only ephemeral rivers and pans. these sands consolidated to form the stormberg group, the remnants of which are found only in the immediate vicinity of lesotho. several dinosaur nests, containing eggs, some with dinosaur fetal skeletons in them, have been found in these rocks, near what had once been a swampy pan.