Ouranopithecus macedoniensis

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Ouranopithecus macedoniensis lived in the Late Miocene of Greece, about 9.6 to 8.7 million years ago. Fossils have been found at three sites in northern Greece: Ravin de la Pluie in Axios Valley, Chalkidiki, and Xirochori. Most remains are skulls; only a few bones from the body have been found. It is slightly earlier than Ouranopithecus turkae, and most researchers view them as sister species rather than direct ancestors.

Appearance and teeth: It had a large, broad face with a prominent brow ridge and square eye sockets. It was probably a fairly large ape. The teeth show extreme sexual dimorphism, with males having very large canine teeth and strong lower premolars used for shearing. The molar enamel was fairly thick with low cusps, and the second molar is heavily pitted, suggesting a diet that included hard foods like nuts or tubers.

Habitat and diet: The dental remains of this species and nearby animals imply a habitat with low tree cover and a rich herbaceous layer, indicating a mix of open areas and ground vegetation.

Locomotion: Postcranial evidence is sparse, but the dental patterns and size suggest a quadrupedal animal (walking on four legs) that may have spent some time in trees; the exact behavior is hard to determine from the fossils.

Summary: Ouranopithecus macedoniensis is a Late Miocene Greek ape known from a limited set of cranial fossils. It shows features of a large-bodied, quadrupedal hominid with thick molar enamel and striking sexual dimorphism, living in a environment with open spaces and abundant ground vegetation.