Early Hominins Flashcards

1
Q

major hominin groups

A
  • Pre-australopithecines
  • australopithecines
  • genus Homo
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2
Q

pre-australopithecines

A
  • earliest possible hominins

- 6.0-4.4 mya

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3
Q

Australopithecines

A

genus australopithecus

  • diverse forms
  • 4.2 - 1.2 mya
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4
Q

Genus homo

A

tool users, several species

2.0-present

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5
Q

facial prognathism

A

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

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6
Q

sactorial premolar complex

A

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

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7
Q

Diasthema

A

a space between two teeth

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8
Q

postcanine megadontia

A

big back teeth

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9
Q

parabolic dental arcade

A

(like humans)

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10
Q

u-shaped dental arcade

A

(like apes)

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11
Q

Gracile

A

reduced muscle attachments and tooth size = gracile

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