Temporal range: Miocene
Güleç, Sevim, Pehlevan & Kaya, 2007
This is known from the Corakyerler locality, central Anatolia. It is known only from three cranial fossils. Dated faunal remains associated with the O. turkae fossils have been attributed to the late Miocene 8.7 – 7.4 million years ago, making O. turkae one of the youngest Eurasian great apes ever known.
Associated faunal remains suggest O. turkae lived in either open woodland or an open savannah type environment.
The morphology of O. turkae is difficult to determine due to the complete lack of post-cranial remains. The post-canine dentary is second only to that of Gigantopithecus in size, perhaps suggesting a large body size. It is unknown whether the species was sexually dimorphic as there are no known female fossils. The ape was probably a quadruped but there is no evidence to confirm this.
Again, the lack of post-cranial remains makes it difficult to determine how O. turkae behaved. The fossils were not associated with any females of the species so it could be suggested that the males, at least, were solitary. It may also be assumed that O. turkae climbed trees, possibly to feed or to avoid predation, although their suggested large body size may have made climbing difficult. Some believe O. turkae was probably a terrestrial forager and did not feed in the trees.