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Flashcards in Early Hominins Deck (11)
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1

major hominin groups

-Pre-australopithecines
-australopithecines
-genus Homo

2

pre-australopithecines

-earliest possible hominins
-6.0-4.4 mya

3

Australopithecines

genus australopithecus
-diverse forms
-4.2 - 1.2 mya

4

Genus homo

tool users, several species
2.0-present

5

facial prognathism

the degree to which the face projects in front of the braincase

6

sactorial premolar complex

combination of canine and first remolar teeth that forms a self sharpening aparatus

7

Diasthema

a space between two teeth

8

postcanine megadontia

big back teeth

9

parabolic dental arcade

(like humans)

10

u-shaped dental arcade

(like apes)

11

Gracile

reduced muscle attachments and tooth size = gracile