Before H. sapiens Flashcards
1
Q
Sahelanthropus age
A
7 mya
2
Q
Sahelanthropus location
A
Chad
3
Q
Sahelanthropus features
A
- anteriorly positioned foramen magnum
- reduced canines
- chimp sized brain (350 cm3)
4
Q
Ardipithecus age
A
5.5 - 4.5 mya
5
Q
Ardipithecus location
A
Ethiopia
6
Q
Ardipithecus features
A
- anterior foramen magnum
- small canines
- chimp sized brain (~325 cm3)
7
Q
Australopithecus age
A
3.7 - 1.78 mya
8
Q
Australopithecus location
A
E/S Africa
9
Q
Australopithecus features
A
- ~475 cm3
- thick enamel
- sexually dimorphic in body size
- prognathic face
- stone tool use
10
Q
Paranthropus aethiopicus age
A
2.7 - 2.3 mya
11
Q
Paranthropus aethiopicus location
A
E. africa
12
Q
Paranthropus aethiopicus features
A
- highly prognathic face
- massive sagital crest
- massive molars
13
Q
paranthropus boisei age
A
2.3 - 1.2 mya
14
Q
paranthropus boisei location
A
E. africa
15
Q
paranthropus boisei features
A
- sagittal crest
- laterally flaring cheek bones
- large post canine teeth
16
Q
H. habilis age
A
2.4 - 1.4 mya
17
Q
H. habilis location
A
E/S africa
18
Q
H. habilis features
A
- ~ 600 cm3
- rounded cranial vault
- slightly smaller teeth than Australopithecus
19
Q
H. erectus age
A
2 mya - 250 kya
20
Q
H. erectus location
A
africa, europe, asia
21
Q
H. erectus features
A
- large supraorbital torus (eyebrows)
- angled occipital
- flat frontal bone
- sagittal keel
- obligate biped
22
Q
H. heidelbergansis age
A
800 - 300 kya
23
Q
H. heidelbergansis location
A
africa, europe, asia
24
Q
H. heidelbergansis features
A
- large brain (1200 cm3)
- divided brow ridges
- massive, wide face
- sloping forehead
- widest brain case in parietal region
