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| A genus of hominins characterized by large brain size and dependent on culture as a means of adaptation. |
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| An early species of Homo that lived in Africa between 1.9 million and 1.44 million years ago (and perhaps earlier), with a brain size roughly half that of modern humans and a primitive postcranial skeleton. |
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| The oldest known stone tool culture. |
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| A species of early Homo from Africa that lived 1.9 million years ago, with a brain size somewhat larger than H. habilis but with larger back teeth and a broader face. |
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| A cast of the interior of the brain case used in analyzing brain size and structure. |
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| A species of the genus Homo that arose 1.9 million years ago in Africa and then spread to parts of Asia and Europe. |
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| The narrowness of the skull behind the eye orbits, a characteristic of early hominins and Homo erectus. |
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| The large ridges of bone above the eye orbits, very noticeable in Homo erectus. |
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| The name given to African specimens of Homo erectus by those that argue that what has typically been called Homo erectus is actually made up of two different species. |
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| The stone tool culture that appeared first with Homo erectus and was characterized by the development of hand axes and other bifacial tools. |
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| A method of removing flawes from a stone core by striking it with a softer material, such as bone, antler or wood. |
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| A stone tool with both sides worked, producing greater symmetry and efficiency. |
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