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Flashcards in Hominins Deck (12):
1

Sahelanthropus tchadensis

7-6 mya, reduced prognathism, chimp like cranial capacity, bipedal foramen magnum position

2

Orrorin tugenensis

6.1-5.8 mya, possible biped from femur, smaller molars than a. afarensis

3

Ardipithecus ramidus

4.4-3.9 mya, centered foramen magnum, short broad pelvis, abducted big toe, no suspensory or knuckle walking adaptations

4

A. Anamensis

4.2-3.9 mya, earliest certain biped, reduced canines, thicker enamel, strong tibia, bipedal knee and ankle, long curved fingers

5

A. Afarensis

3.9-3.2 mya, east africa, lucy, large incisors, prognathic face, cranially oriented scapular glenoid, centered foramen magnum, distinct foot arch, valgus knee angle

6

A. Africanus

3.5-2.0 mya, southern africa, C4 diet (grasses), globular cranium, less prognathic than a afarensis, reduced canines, both bipedal and arboreal adaptations in foot

7

A. Sediba

2.0-1.8 mya, small brain and teeth, long arms and primitive foot, derived pelvis and hand

8

A. Garhi

2.5 mya, canines and premolars similar to homo, huge molars, ape like arms and legs

9

P. Aethiopicus

2.6-2.3 mya, prognathic, sagittal crest, the black skull, wide dish like face, shows how p and a are related

10

P. Robustus

2.0-1.5 mya, south africa, lasted until early homo

11

P. Boisei

2.2-1.3 mya, east africa, more robust than p. robustus, larger skull, associated with oldowan tools

12

Homo Habilis

1.8-1.6 mya, large cranium capacity, associated with oldowan tools