Karoo Supergroup divided into (from oldest to youngest): 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
Gulf of Oman desert and semi-desert Gulf of Oman continuing along past Muscat to the beaches and dunes of the Ash Sharqiyah Region. From the Ras al Hadd point it runs south along the coast to the desert island of Masirah. It also includes an inland strip running along to the southwest of the Al Hajar Mountains. In the UAE it covers the plains around the Al Hajar mountains in the east, in the emirates of Dubai, Sharjah and Ras Al-Khaimah, and the country's Al Batinah coast around Fujairah. This dry ecoregion contains a mixture of habitats including mangrove swamps, lagoons and mudflats on the coast,