Chapter 5 Flashcards
When did hominids begin?
Late Miocene
What constitutes a hominin?
bipedalism
Earliest Hominins
Sahelanthropus
Orrorin
Ardipithecus
Advantages of bipedalism
Range
Predators
Carrying capability
Sun exposure
Ardipithecus
First evidence of bipedalism.
Lived in forest.
Early Austrobros
Anamensis
Afarensis
Laetoli site
Austro afarensis
Footprints in volcanic ash
Hadar site
Lucy
Later Austrobros
Gracile
Robust
Gracile Austrobros
small/light faces
large molars
stone tools
Robust Austrobros
rugged jaw
flat face
huge molars
bone tools
Early Homo
Evolved from gracile austrobros
Lived alongside robust austrobros
Larger brain
Olduvai Gorge
Homo habilis
Louis Leakey
Oldowan Tradition
first stone-tool making style
Homo habilis
Taphonomy
How objects become part of archaelogical record