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Lecture 6

ANTA01-lecture 6.docx

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University of Toronto Scarborough
Mary Silcox

ANTA01 – Lecture 6 October 22, 2012  Homo erectus ( ~ 1.8 mya - ~40000 years ago) o Travels from Africa all the way to Europe and Far Eastern Asia; the first species to leave o First discovered by Eugene Dubois  The man who “found the missing link”  He took his family to Sumatra (not a lot of success) and moved to Java (successful; near the Trinil, Java; the river;  From Trinil, they found the fossils of Homo erectus  Bony growth – exostosis; happens when the bone is tear  The skull was intermediate to the chimp and human o Sangiran 1.6 my o Ngandong ~40000 years ago o Davidson Black – involved in the discovery of homo erectus fossils at Zhoukoudian  “perking Man” found in the reconstruction, Zhoukodian cave, Chine (~780000 ya)  Lantian 1.15 my  Average cranial capacity 900 cc  Thick cranial bone compared to a modern human  More sloping forehead (humans have more a vertical forehead)  Superorbital torbus – bar-like structure over the eyes (brow ridges)  Nuchal torus – barlike structure behind the head  Sagittal keel  The widest part of the skull is near the base (while in modern humans it higher) o Richar Leakey from the East of Lake Turkana, Kenya (1975)  Oldest specimen (~1.7 mya) o Kimoya Kimeu – west of Lake Turkana, Kenya (~1.6 mya)  Nariokotome boy  The best specimen – 40% complete  We know the cause of death – inside of the manibel, there is a hole in his jaw (an infection from a tooth)  Age? 8 – 12 years old  ~5 ‘ 3” and would have grown ~6’  Short, broad pelvis, laterally oriented; angled knee; long legs relative to the arms (new) o Dmanisi – a site in the Republic of Georgia  Hominins securely fated to ~1.81 mya  Suggests that hominins travel a long way  Cranian capacity (~650 cc)  he lost all of his teeth; suggests that someone was helping him eat and survived longer than any other animals with no teeth  How human was Homo erectus? o Tools  Flake tools and core tools  The Acheulian handaxe (biface)  6 – 7 inches in length
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