final Flashcards

(49 cards)

1
Q

a brief history of Australopithecus

A

southern ape, two well-known species: A.ramidus and Au. africanas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Australopithecus shared features

A

pelvis bipedal, not exactly like ours, feet look like ours but tiny

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Australopithecus afarensis

A

Dates: 3.8-3.9 Ma and 380-550cc Location: ? Traits: megadont, suspensory arms, short femur w/valgus angle, small, human-like foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Australipithecus afarensus bipedal how?

A

bent knee, bent hip, striding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Australopithecus africanas

A

Date: 3.3-2.1 Ma, Location: South Africa, Traits: similar to A. afarensis in primitive traits (arms) but exhibits more advanced morphology, large brain, more human-like pelvis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Paranthropus shared features

A

3 species, hypermegadont, small incisors, canines, dished face, sagittal crest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Difference between gracile (Australopithecus) and robust (Paranthropus) “Australopithecines

A

post- cranially very similar, cranially very different

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Paranthropus aethiopicus

A

2.7-2.3 Ma, Ethipoia and Kenya, Huge sagital crest, and very prognathic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Paranthropus boisei

A

2.5-1.4 Ma, East Africa Ethiopia to Malawi, flexed cranium, anterior crest, 500-540cc

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Paranthropus robustus

A

1.8-1.0 Ma, South Africa, very similar to P. boisei less robust

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Australopith, Chronology and Biogeography

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Adaptive radiation

A

rapid diversification in a lineage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Modified Savannah Hypothesis

A

origin of hypermtadont and expansion of tool use

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How do we reconstruct diet?

A

teeth- 60-70% is denition, mastication system, wear patterns, isotopes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Dental anatomy and morphology (teeth)

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Mastication system (levers)

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Wear Patterns (enamel mircorwear)

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Isotopes (C3 versus C4 vegetation)

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Difference between Australopithecus and Paranthropus diets

A

Australopithecus: Megadont, strong mastication, more scratches (folivore), 30% C4, Paranthropus: Hypermegadont, powerful mastication, more pits ( brittle diet), 30% C4, P. boisei= mainly C4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Fallback foods and adaptation

A

underground storage organs- Australopth diet

21
Q

the earliest evidence of stone tools and cut marks

A

stone tools: Lomekwi, Kenya- 3.4 Ma, cut marks: Dikika, Ethiopia- 3.4 Ma

22
Q

earliest specimen of homo

23
Q

The Habilines (general characteristics)

A

610-750cc, reduced dentition, precision grip, small body size, australopith body proportion generally, similar to australopiths, obligate biped, some arboreality, large-brained, tool making

24
Q

How much variation is there within a single species?

25
Qualitative characteristics ( do they follow a normal mammalian pattern)
early homo (the hablines): 1470 1813 supra-orbital torus: small medium supra-orbital sulcus: absent insipient temporal origin: gracile marked nuchal origin: medium medium canine size: small small prognathism: little avelolar
26
Homo Habilis
2.6-1.65 Ma, all of eastern Africa, especially Koobi Fora, and South Africa, Thumb=human like, wrist like bones=human like phlanges=curved, long arms, widely dispersed, mod. encephalization, robust cranially, precision grip (tools)
27
Homo rudolfensis
1.9 Ma, eastern Africa (Kenya), 2.4?, Malawi, generally lest robust, slightly bigger, large teeth and palate
28
The erectines
intermembral index =75, long femur, two species?
29
Endurance running hypothesis
30
Persistence running hypothesis
31
expensive tissue hypothesis
32
stone tool (lithic) hypothesis
33
Homo erectus ( sensu lato)
2.0 Ma-117 ka, Old world distribution, 2 species, much encephalization, long, low cranium, full facial prognathism, external nose
34
Hypotheses for pan- African and Eurasian dispersal of Homo erectus
Intrinsic hypotheses: large body size-no, human-like intermembral index-yes, large brain-no, tool use- no, increased meat consumption-yes extrinsic hypotheses: escape from disease- no, normal mammalian dispersal- no, following predators- no, following prey- no, demographic pressure- yes, environmental influence- yes
35
Homo heidbergensis
600Ka-200Ka, location:?
36
Dispersal hypothesis
37
multiregional hypothesis
38
recent African origins
39
Homo neanderthalensis
230ka-30ka, location ?, massive face, occipital bun, huge nasal aperture(nose), swept-back zygomatics (cheekbones), no chin, heavy wear on front teeth, large body mass, low brachial and crural indices, technologies- Mousterian and Levallas technique, hunting- distribution of injuries similar to rodeo riders or agricultural workers, art? burial of dead- site layout, speech-ee
40
Homo floresiensis
100-60ka, Liang Bua, Flores Island, small brains, very little post-orbital constriction, slightly prognathic, no chin , stone tools?
41
Which hypothesis regarding H. florensis is the best supported and why
It is an island dwrad form of Homo Erectus- large animals become smaller, small animals become larger
42
Homo sapiens
315-(195) ka- present, rounded cranium, short face, orthognathic, vertical forehead, skull tall (top to bottom), skull short (front to back), Cranial capacity: 1200-1500cm^3, canine fossa, the pilaster on the femur
43
Dispersal-timing of the earliest occurrences in different regions
Africa:160 ka Middle East:100ka Australia: 60ka Asia: 40-60 ka Europe:40ka The Americas:21ka?
44
What is forensics
use of scientific methods inn solving crimes and in legal settings
45
Discriminant Function Analysis
allows classification of unknowns
46
Four main biological identifiers
ancestry, sex, age, and stature
47
Idiosyncartic varaiton
48
Behavior indicators
49
Pathology and disease