Gigantopithecus (Earth-4001)

Gigantopithecus (from the Ancient Greek γίγας gigas "giant", and πίθηκος pithekos "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 primate species that ever lived, standing up to 3 m (9.8 ft) and weighing as much as 540–600 kg (1,190–1,320 lb), although some argue that it is more likely that they were much smaller, at roughly 1.8–2 m (5.9–6.6 ft) in height and 180–300 kg (400–660 lb) in weight. It was a sapient species, and was called the Shakyanusho by ancient humans.

History
The history of Gigantopithecus is the same as their Halo universe counterparts.