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Lecture

The Story of Lucy.docx

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Department
Archaeology
Course
AR101
Professor
Bonnie Glencross
Semester
Fall

Description
The Story of Lucy  Discovered in 1974 by Donald Johnson & colleagues  Lucy = 3.2 mill year old skeleton of a Australopithecus afarensis named after the Beatles song, “Lucy in the Sky with Diamonds”  Think about: o The significance of the find o Conditions leading to preservation o Conditions necessary for discovering fossil hominids o Conditions permitting the use of what type of dating technique Significance  Lucy = also known as AL 288-1 is represented by hundreds of bone fragments comprising approximately 40% of the skeleton of an Australopithecus afarensis individual  Lucy is estimated to have lived 3.2 million years ago, is approx 1.1 min (3’7”) tall and 29kg (64lbs)  While maintaining a small oranial capacity (430cc) her skeleton provides evidence for upright posture & bipedalism Preservation  Taphonomy: from dealth until discovery  Died: natural dealth  Sunk into soft lake sediments & decomposes; undiscovered by scavangers  Sand & gravel washed in by heavy rains covers bone
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