Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Science. 2010 Apr 9;328(5975):205-8. doi: 10.1126/science.1184950.

Geological setting and age of Australopithecus sediba from southern Africa.

Author information

  • 1School of Earth and Environmental Sciences, James Cook University, Townsville, QLD 4811, Australia. paul.dirks@jcu.edu.au

Abstract

We describe the geological, geochronological, geomorphological, and faunal context of the Malapa site and the fossils of Australopithecus sediba. The hominins occur with a macrofauna assemblage that existed in Africa between 2.36 and 1.50 million years ago (Ma). The fossils are encased in water-laid, clastic sediments that were deposited along the lower parts of what is now a deeply eroded cave system, immediately above a flowstone layer with a U-Pb date of 2.026 +/- 0.021 Ma. The flowstone has a reversed paleomagnetic signature and the overlying hominin-bearing sediments are of normal polarity, indicating deposition during the 1.95- to 1.78-Ma Olduvai Subchron. The two hominin specimens were buried together in a single debris flow that lithified soon after deposition in a phreatic environment inaccessible to scavengers.

Comment in

PMID:
20378812
[PubMed - indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Write to the Help Desk