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23 Cards in this Set

  • Front
  • Back
Sahelanthropus tchadensis
Chad, 2001
6-7 mya

relatively short flat face
similar teeth to hominids
somewhat anterior foamen magnum

large browridges
chimp-size skull, brain
saggital crest

320-380cc
Orrorin tugenensis
Kenya, 2001
6 mya

femur shows bipedality

seems to have lived in forested environment
Ardipithecus ramidus
Ethiopia 1990s
4.4 mya

anterior foramen magnum
toe bones show bipedality

primitive canines
low enamel on molars
australopithecines
4.2 to 1.2 mya
bipedal, ape-like features
small brained, sexual dimorphism in body mass, little in canine size
specialized dietary adaptations
small incisors, canines
herbivores, some meat
Australopithecus anamensis
Meave Leakey, Lake Turkana
4.3-3.9 mya

bicondylar angle
orangutan like snout

gracile
Australopithecus afarensis
Laetoli (Tanzania) Hadar (Ethiopia)
4.3 mya
bipedal, could climb
400-440cc
sexually dimorphic
(Lucy)
u-shaped dental (chimps)
pelvis bowl shaped
sub-nasal prognathism (chimp)
Australopithecus africanus
Discovered S. Africa by Raymond Dart 1924
3-2.2 mya

foramen magnum anterior
flatter face, reduce canines
climbing adaptations
400-500 cc
faster maturation
divergent big toe

gracile
Australopithecus garhi
Ethiopia, 1999 by Tim White
2.5 mya

450cc
prognathic face
bigger teeth
longer lower limb bones
antelope bones showed hammerstone cut marks
(used tools!)
Kenyanthropus platyops
Meave LEakey, 1999
3.5 mya

less prognathic face (later humans)
400-500 cc
no post-cranial fossils
robust species
larger cheek teeth
sagital crests
larger chewing muscles
post-orbital constriction
CHEWING!
Australopithecus aethiopicus
Ethiopia
2.5 mya

small brain, prognathic face
sagittal crest, large molars
no post-cranium fossils

robust
Australopithecus robustus
South Africa
1.8-1 mya

500-530cc
sagittal crest, heavy chewing
Australopithecus boisei
Mary Leakey, Olduvai Gorge 1959
2.2-1.3 mya
very robust

sagittal crest
dish-shaped face
sexually dimorphic
475-545cc
Australopithecus behavior
bipedal but can climb
moderate canine dimorphism
size dimorphism
polygynous social system
less infant dependency
herbivory, hard seeds for robust
omnivory for gracile
Homo habilis
Louis Leakey, Olduvai Gorge, 1960

2 hominid species found in association

no saggital crest, smaller teeth, found close to tools

2.4-1.5 mya

long legs, robust heel
long, strong thumb, short, broad fingers
rounded skull
600-700 cc
not as prognathic
smaller molars
less postorbital constriction
Homo habilis locomotion
bipedal, fully terrestrial
savanna, primarily vegetarian
oldowan tools
taphonomy
study of processes that produce archeological sites

what happens to an animal's bones after it dies
Homo erectus (Homo ergaster)
larger (brain and body)
found outside of Africa
advanced tools
very similar to modern humans
750-1250 cc

large browridges
low forehead
broad at skull base
occipital torus
thick cranial bones
shovel shaped incisors
as tall as modern humans, more sexually dimorphic
thicker leg bones

Eugene DuBois, Java, 1891
Zhoukoudian
site at which over 100 Homo erectus bones were found

3 cultural periods
Turkana Boy
Homo erectus
found 1984
1.6 mya, 11-12 years old at death
90% complete
long, linear shape, likely to reach 6'1"
Homo heidelbergensis
800-130 kya
pre-modern humans, archaic Homo
Africa, Asia, Europe
Acheulean, Levallois tools
pleistocene, glaciation

controlled, used fire
had shelters, structures
many different food sources
Neanderthals
130-30 kya
Western Eurasia, Middle East

Neander Valley, 1856

thin walled cranium, low forehead
large brow ridges
1245-1740cc (avg. 1520, larger than modern human avg)
mid-face prognathism
large nasal opening
occipital bun
no chin
small posterior, worn large anterior teeth
short, robust, heavily muscled
thick, long bones, large joints
barrel chested
cold adapted
community care
burials, symbolism?
Mousterian tools
Chatelperronian tools
Homo floriensis
Indonesian island Flores, 2003
8 individuals
1 meter tall
400cc
bipedal, human teeth
13 kya