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Definition of: protohuman
(prō′tō·hy
′mən) adjective
1. Anterior to or more primitive than man.
2. Paleontol. Of, pertaining to, or describing any of several hominoid primates regarded as being at an earlier stage of development than Homo sapiens.
—noun Any primate antedating modern man in evolutionary characteristics. Principal types are:
| Africanthropus | Meganthropus |
| Australopithecus | Oreopithecus |
| Dryopithecus | Pithecanthropus |
| Gigantopithecus | Sinanthropus |
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