Test 1 Flashcards
Takes the form of test pits or trenches placed across a site to expose the stratigraphy and artifact contents of a site; can identify stratified layers of soil
Vertical excavation
What does stratigraphy tell us?
How the site was formed and how materials accumulated
Expose large areas of the ground; recover information about site arrangement and structure
Horizontal excavation
Dating based on relations between materials; sequencing things
Relative dating
Method of assigning archaeological dates in calendar years so that an age in actual number of years is known or can be estimated
Absolute dating
Using tree rings to find out the date when the tree was alive
Dendrochronology
Finding carbon 14 and potassium argon to date things
Radioactive isotopes
Tracks magnetism in materials for magnetic orientation of the planet
Paleomagnetic
Deal with the period of humans on the planet
Archaeological chronology (-lithic periods)
Deal with the entire history of earth and distinguish a series of eras and epochs
Geological chronology (-cene periods)
What is the evidence for bipedalism?
Upright posture, s-curve, lack of opposable toe, special legs
Where did Australopithecus Afarensis originate from?
East Africa, Laetoli, Hadar
Fully bipedal, ape/human like, long arms and curved fingers, still adapted for climbing, most famous specimen was Lucy
Australopithecus Afarensis
How long did Australopithecus Afarensis last?
Pliocene, 4.2-2.8 may
Why is Laetoli important?
Proves that A. Afarensis was fully bipedal, had preserved footprints in volcanic ash
How long did Homo Habilis last?
Pleistocene, 2.5-1.6 mya
What is significant about the lower paleolithic?
First stone tool traditions, evidence for control of fire, cold weather adaptations
What tool traditions are associated with the Lower Paleolithic?
Oldowan, Archeulean
Oldest direct ancestor, flatter face and larger brain, known for the first stone tool adaptation(Oldowan), first genus of Homo
Homo habilis