(Latin; " erect man ")
Extinct species of early hominid that is generally thought to be a direct ancestor of modern Homo sapiens .
H. erectus flourished from 0441; 1,600,000 years ago to 250,000 years ago, ranging widely from Africa (where the species originated) to Asia to parts of Europe. Most of the anatomical differences between H. erectus and H. sapiens concern the skull and teeth, H. erectus showing a low, thick braincase (8001,100 cc) with jutting browridges and a wide nose, palate, and jaw together with large teeth that are nevertheless hominid and not apelike. The limb bones are similar to those of H. sapiens , indicating that H. erectus was of medium stature and walked upright. The species is associated with the Acheulean tool tradition and was the first hominid to master fire and inhabit caves. See also human evolution ; Java man ; Zhoukoudian .