East Africa during the Miocene
25 to 5 million years ago
East Africa during the Pliocene
5 to 2.5 million years ago
Primitive primates0
lemurs, omomyid,
galago/bush babies
monkeys
Central & South
America, Asia, Africa
apes
Africa & Asia; humans
are global of course
Four types of modern chimpanzees
Sahelanthropus
7.0 to 5.0 Ma
From Chad
Oldest known
fossil of a
human
ancestor
Only cranial
material
orrorin
6 Ma
Lake Baringo
(Kenya)
ardipithecus
6.0 to 5.0 Ma Ethiopia
LUCY
Australopithecus afarensis
3 to 4 million years ago in eastern Africa
Brain size of humans
> 1000 cc
Brain size of chimpanzees and australopithecines
500 cc
Head-neck joint
Bipedalism (foramen magnum)
human + australopithcine angle of insertion
90 degrees
chimpanzee angle of insertion
less than 90 degrees
laetoli footsteps
Preserved in volcanic
ash in Tanzania
2 million years ago
homo erectus
homo erectus
KNM-ER 3733, KNM-ER
3833, KNM-WT 15000 date
1.5 Ma
150,000 years ago
Homo sapiens
Upper Paleolithic Period
50,000 years ago
Chauvet
cave painting from 32,000 years ago
Lascaux
cave painting from 17,000 years ago
Peche Merle
cave painting from 15,000 years ago