Early hominins Flashcards
(15 cards)
Australopithecus anamensis
East Africa
4.2- 3.8 Mya
Skeletal features - Cranium is ape like, receding chin, cranial capacity 363-370 cc.
Locomotion - tibia indicates bipedalism
Diet - leaves and fruits
No tool use
Australopithecus afarensis
East Africa
3.6 - 2.5 Mya
Skeletal - Prognathism, flared cheeks, small canine and thick enamel molars, no sagittal crest, not sexual dimorphism
Cranial capacity - 390-515 cc
Mixed bipedal and arboreal
Hard plant foods
Possible tools
Australopithecus Africanus
South Africa
3.2 - 2 mya
Same as Afarensis
Cranial - 440 cc
Kenyanthropus Platyops
East Africa
3.3-3.2 Mya
450 cc
Plant foods
bipedal
no tools
Paranthropus robustus
South Africa
1.8-1.2 Mya
Skeletal - Wide disk shaped face, flared cheeks, big molars, sagittal crest pronounced, sexually dimorphic
Cranial - 450-475 cc
Bipedal
Fibrous foods
Bone tools
Paranthropus Boisei
East Africa
2.5-1.15 mya
Skeletal - robust of parathropus genus
Dimorphic
Cranial 450-550 cc
Bipedal
Grasses and tubers diet
Stone tools maybe
Homo Rudolfensis
East Africa
1.9 Mya
Skeletal - long flat face, large molar, jaw not as robust, no sagittal crest, sexual dimorphic
Cranial - 750 cc
Meat diet
Homo habilis
East AFRICA
Skeletal - small face, smaller molar, long arms
500-900cc
bipedal
Meat and fruit
stone
Homo ergaster
East Africa
1.9-1.5 Mya
Skeletal - modern, tall and slender
Cranial - 860
Bipedal
Diet of meat and plant tubbers
Stone tools
First to expand beyond Africa
Very tall for walking and running
broad pelvis
Hunter - gathers
Homo Heidelbergensis
500,000-200,000 ya
Germany discovered
Big brain and body
Good hunter
Homo floresiensis
95000-12000 ya
400cc
3.5 feet, hobbit
Small brain and body
Dwarism
Distinct species
Homo Neanderthals
130,000- 28000 years ago
closely related
Neander valley - Germany
subspecies of separate
1600m^3 cc
Better vision
large nose
large eyes
reduced chin
robust build
shorter limbs
wide rib cage
large joints
boarder hips
meat and fruit diet
language
hydroid for talking
stone tools and arty
Why did Neanderthals go extinct
Theories are :
-Violence
-Disease
-Interbreeding with homo sapiens
-Replacement
-Climate change - too cold
Homo sapiens
195000-present
Fossils everywhere
1350 cc mean
Rounder head
Vertical forehead
Small brows and less receding face
Lived in caves and rock shelter and had large culture
Biggest debate of hominin evo
Replacement of species vs assimilation