ATR 250
Chapter 11: The Origins and Evolution of Early Homo

Acheulian Complex     The culture associated with H. erectus, including hand axes and other types of stone tools; more refined than the earlier Oldowan tools.
handaxe     The most dominant tool in the Acheulian complex, characterized by a sharp edge for both cutting and scraping.
Homo erectus    An early Homo species and the likely descendant of H. habilis; the first hominid species to move out of Africa into Asia and Europe.
Pithecanthropus erectus    The name first proposed by Ernst Haeckel for the oldest hominid; Dubois later used this name for his first fossil discovery, which later became known as Homo erectus.
sagittal keel     A slight ridge of bone found along the midline sagittal suture of the cranium, which is typically found on H. erectus skulls.