Gigantopithecus
Gigantopithecus (from the Ancient Greek ' "giant", and ' "ape") is an extinct genus of ape that existed from perhaps nine million years to as recently as one hundred thousand years ago, at the same period as "Homo erectus" would have been dispersed, in what is now India, Vietnam, China and Indonesia placing "Gigantopithecus" in the same time frame and geographical location as several hominin species. The primate fossil record suggests that the species "Gigantopithecus blacki" were the largest known primates that ever lived, standing up to and weighing as much as , although some argue that it is more likely that they were much smaller, at roughly in height and in weight.
Elephant
At the beginning of the Pleistocene, elephantids experienced a high rate of speciation. The Pleistocene also saw the arrival of "Palaeoloxodon namadicus", the largest terrestrial mammal of all time. "Loxodonta atlantica" became the most common species in northern and southern Africa but was replaced by "Elephas iolensis" later in the Pleistocene. Only when "Elephas" disappeared from Africa did "Loxodonta" become dominant once again, this time in the form of the modern species. "Elephas" diversified into new species in Asia, such as "E. hysudricus" and "E. platycephus"; the latter the likely ancestor of the modern Asian elephant. "Mammuthus" evolved into several species, including the well-known woolly mammoth. Interbreeding appears to have been common among elephantid species, which in some cases led to species with three ancestral genetic components, such as the straight-tusked elephants. In the Late Pleistocene, most proboscidean species vanished during the Quaternary glaciation which killed off 50% of genera weighing over worldwide.