Australopithecus afarensis: AL 288-1

Dublin Core

Title

Australopithecus afarensis: AL 288-1

Fossil Item Type Metadata

Discoverer(s)

Donald Johanson

Type Specimen

LH 4

Specimen Name/Nickname

"Lucy" AL 288-1

Location (Country)

Ethiopia

Site (Name)

Hadar

Discovery Date

1974

Specimen/Species Time Range

3.6-2.8 mya

Dating Method

argon-argon absolute dating method

Specimen Data (Morphology)

Examples of human-like morphologies include a low and broad illium, an anterior inferior iliac spine for muscle attachment, and a dorsally projecting ischium (which provides a lever for the hamstrings). Lucy also displays primitive morphologies including very wide iliac crests. The iliac blades did not wrap around pelvis as they do in modern humans. However, a wide pelvis could have counter acted the short limbs by granting further stride length. So, this form of bipedalism wasn’t just intermediate, but instead showed its own strategy.

Files

The famous partial skeleton of Lucy
Date Added
March 21, 2017
Item Type
Fossil
Citation
“Australopithecus afarensis:AL 288-1,” Hominid Fossil Repository, accessed May 23, 2022, http://projects.leadr.msu.edu/hominidfossils/items/show/22.