1. Homo Erectus The First Dispersal
Homo Erectus

2. Africa’s Great
Rift Valley

3. Homo habilis
2.5 million years, BP
First Toolmaker:
Oldowan Tools

4. Technology: Oldowan Tool Kit

5. Homo erectus/Homo Ergaster
At E. Turkana by 1.7 million BP
Dmanisi Georgia (Caucasus)
By million years, BP
Java by 1.6 million years, BP
China by 780,000 years, BP

7. Biocultural Evolution
Larger Body Size
Encephalization & Culture
Precision Grip & Fine
Motor Skills

8. Technology: Acheulian Tool Kit
Dmanisi Tools:
Hand ax
Chopper

9. Encephalization Hunting and Cooking?
Mean Cranial Capacity: 900 cubic cm.
Nuchal Torus
Supraorbital Torus
Post-cranial Skeleton
Hunting and Cooking?