Brontotheres died out in the Earliest Oligocene, and creodonts died out outside Africa and the Middle East at the end of the period. Multituberculates, an ancient lineage of primitive mammals that originated back in the Jurassic, also became extinct in the Oligocene, aside from the gondwanatheres. The Oligocene was home to a wide variety of mammals. A good example of this would be the White River Fauna of central North America, which were formerly a semiarid prairie home to many different types of endemic mammals, including entelodonts like "Archaeotherium", camelids (such as "Poebrotherium"), running rhinoceratoids, three-toed equids (such as "Mesohippus"), nimravids, protoceratids, and early canids like "Hesperocyon". Merycoidodonts, an endemic American group, were very diverse during this time. Primates such as "Proconsul" also evolved during the Oligocene. In Asia during the Oligocene, a group of running rhinoceratoids gave rise to the indricotheres, like "Paraceratherium", which were the largest land mammals ever to walk the Earth.