Karoo Supergroup Karoo Supergroup The Karoo Supergroup is the most widespread stratigraphic unit in Africa south of the Kalahari Desert. The supergroup consists of a sequence of units, mostly of nonmarine origin, deposited between the Late Carboniferous and Early Jurassic, a period of about 120 million years. In southern Africa, rocks of the Karoo Supergroup cover almost two thirds of the present land surface, including all of Lesotho, almost the whole of Free State, and large parts of the Eastern Cape, Northern Cape, Mpumalanga and KwaZulu-Natal Provinces of South Africa. Karoo supergroup outcrops are also found in Namibia, Swaziland, Zambia, Zimbabwe and
Okanagan Desert Okanagan Desert The Okanagan Desert is the common name for a semi-arid area located in the South Okanagan region of British Columbia, Canada, primarily around Osoyoos Lake. Part of the area is called the Nk'mip Desert by the Osoyoos Indian Band, though the entire region, like other similar parts of the British Columbia Interior, is technically only semi-arid shrub-steppe. While some areas in British Columbia are more arid, the South Okanagan shrub-steppe contains several species of plants that are not found elsewhere in Canada. It is the presence of these specific plants in the Antelope-brush ecosystem that is claimed to