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How long did Homo erectus live?
1.8 mya (found in east turkana) to 25 kya (found in ngandong)
Give the geographic distribution of Homo erectus
Africa, eastern Europe, China, Indonesia
When comparing the skull or cranial features of Homo erectus to earlier hominins, what major differences can be seen? (6)
- Less prognathic face
- Width of skull is higher
- Larger brain size (600-1,250)
- Projecting nose
- Supraorbital torus -(supraorbital sulcus)
- Saggittal torus (keel)
When comparing body porportions or postcranial features of Homo erectus to earlier hominins, what major differences can be seen? (4)
- Reduced intestinal volume
- Barrel shaped chest
- Reduced sexual dimorphism
- Increased body size
In the "Expensive Tissue Hypothesis", the body's need for more metabolic energy is contributed to what (3) things?
- Increase in brain size
- Decrease in gut legnth
- Increase in high food quality
Give the general date of Acheulean tools and their (3) characteristics
1.6 mya & they were,
- Standardized in form
- had Little modification over time
What (2) proposed uses were there for Acheulean tools?
- Flake dispensers
What are the differences (3) between H. eragaster and H. erectus?
H. eragaster had
- no sagittal keel
- less robust supraorbital torus
- thinner cranial bones
Approximately ____ million years ago, members of the genus Homo began to move around Africa and out of Africa into Eurasia. Compared with earlier Hominins, these first humans have larger brains, larger bodies, reduced sexual dimorphism, shorter arms longer legs and reduced postcanine tooth size