Anthropology test #2 Flashcards
(119 cards)
Archaeology
Study of the past, when an where things come from
Artifacts
things used by humanity (us and our ancestors)
Features
Burn marks, stains
Sites
The location where you find artifacts
Statigraphy
The study of rocks and its layers
Dating
Chronology is where it started, the study of time and events in time
Uniformatarianism
No a lot of change in the layers of things
Superposition
geological layers were diposited, layers changed (rocks)
Strata
Indivisual layers of rocks
Stategraphic sequence
sequence of layers in rocks
Relative Dating
dating things in comparison of other things (estimate)
Provenience
Indicating time, tracking data and time
Radio carbon dating
Dating living things with carbon (current)
Christian Thomson
He identified the three age system:
1. stone age
2. bronze age
3. Iron age
He discovered these ages uding strata, and he used relative dating
K-ar dating
Dating with rocks (100,000-1B years)
Site Groids
Each hole in archaeologist sites are in squares. Its easier to keep track of everything and its location
Benchmark
Proving something was there
Igneous stones
stones that were near a volcano, can be very sharp
Sedimentary stones
sand stone, flint, good for scraping
Metamorphic stones
Altered by heat
Human origin
All our ancestors are from Africa
Humans are hominid, right side up (Homosapiens are the only hominids alive)
hominids have been alive for 6 million years
Footprints were found in Tanzania that suggested hominids have been alive for a long time
Bipedalism
Using legs to walk on instead of hands too
originated from 5 million years ago in a forested area.
Pros:
- Efficiency: less exhausting to walk with
- Carrying capacity: hands can be used to carry things while legs can be used for transportation
- Improve sight: seeing everything, including predators
- body cooling: less energy is used, meaning body can be colder
- Climing ability: you can climb with your arms (can be a con)
Con:
- Speed and agility: less fast and agile
The aquatic ape theory
proven false
Alister Hardy thought that early hominids developed bypedalism by spending a lot of time in the water
He also thought that humans would have their heads above water since we need oxygen, which is how we are using our legs
This is proven false since there is no evidence, and if we were to evolve from sea animals like crocodiles, we would look very different
Australopithecines
Found in South Africa (1-4 million years ago)
Humans lived with them, and they may have bred with them
They were also bypedal
Encephalization- their brains were slightly larger than their body size
Canine reduction: smaller canine teeth
Moderate body size, moderate sexual demorphism