Ancylotherium (meaning "hooked beast") was a chalicothere mammal that lived during the Late Miocene-Pliocene epochs of the Neogene period (9.0—1.8 million years ago).
It was two meters high at the shoulder and like other chalicotheres, it had long forelimbs and short hind limbs. But unlike most other chalicotheres it did not walk on its knuckles.