Bunopithecus sericus

Bunopithecus sericus is an extinct gibbon or gibbon-like primate. Its remains were first discovered in Sichuan, China, in strata from the Middle Pleistocene, but have since been found all over Southern Europe and Asia. It was a frugivore, and, like modern apes, did not have a tail.

Although the two hoolock gibbon species were once included in the Bunopithecus genus, they have recently been removed and B. sericus remains as the only known species of this genus.