Dryopithecus drī˝ōpəthē´kəs, –pĭth´əkəs [key], an extinct group of apes. Fossils about 20 million years old have been found in Africa, Asia, and Europe. Dryopithecus had a semierect posture and is generally believed to be ancestral to modern apes and man. Proconsul, a group of fossil apes that may have been the ancestor of the chimpanzee, is considered by some authorities to be a subgroup of Dryopithecus.
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