Karoo Ice Age Karoo Ice Age The Karoo Ice Age, more commonly referred to as the Late Paleozoic Ice Age, from 360–260 million years ago (Mya) was the second major ice age of the Phanerozoic Eon. It is named after the tillite (Dwyka Group) found in the Karoo Basin of South Africa, where evidence for this ice age was first clearly identified in the 19th century. The tectonic assembly of the continents of Euramerica (later with the Uralian orogeny, into Laurasia) and Gondwana into Pangaea, in the Hercynian-Alleghany Orogeny, made a major continental land mass within the Antarctic region, and the closure of
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