Hofmeyr Skull
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| Image:Hofmeyr Skull.jpg | ||
| Catalog number: | ||
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| Common name: | Hofmeyr Skull | |
| Species: | Homo Sapiens | |
| Age: | 36,000 years | |
| Place discovered: | South Africa | |
| Date discovered: | 1952 | |
| Discovered by: | ||
The Hofmeyr Skull is a prehistoric fossilized human skull. The skull provides evidence supporting the recent single-origin hypothesis, which suggests that anatomically modern humans evolved in Africa before 200,000 to 100,000 years ago, with members of one branch leaving Africa about 80,000 years ago, spreading to the rest of the world and replacing other Homo species already there.
The skull was found in 1952 at the coordinates , in a dry channel bed of the Vlekpoort River, near Hofmeyr, a small town in Eastern Cape, South Africa.
Background
Frederick E. Grine, an anthropologist and anatomist at State University of New York at Stony Brook, led the study. Grine says that he first noticed the skull on a bookshelf in a colleague's office in Cape Town, South Africa, and was inspired to reexamine the skull after noticing its likeness to the skulls of the first modern humans found in Europe.
It was not possible to date the skull using traditional radiocarbon dating, as the carbon had been leached out of the bone, so a new method developed by Richard Bailey of England's Oxford University involving a combination of optically stimulated luminescence and uranium-series dating methods was used. The skull was dated to 36,000 years old, by removing grains of sand from the skull's braincase and determining when quartz crystals in the sand were last exposed to sunlight.
Analysis
The Hofmeyr fossil was compared with skulls from Sub-Saharan Africa, including those of the Khoisan, who are geographically proximate to the find. Using 3-dimensional measurement and mapping techniques, team member Katerina Harvati of the Max Planck Institute for Evolutionary Anthropology[1] in Leipzig, Germany, found that the Hofmeyr Skull is actually quite distinct from those found in Sub-Saharan Africans such as the Khoisan.
The skull's features were found however to have a very close affinity with Upper Paleolithic Eurasians.
References
- F. E. Grine; R. M. Bailey, K. Harvati, R. P. Nathan, A. G. Morris, G. M. Henderson, I. Ribot, A. W. G. Pike (2007-01-12). "Late Pleistocene Human Skull from Hofmeyr, South Africa, and Modern Human Origins". Science 315 (5809): 226 - 229. doi:10.1126/science.1136294.
- Gosling, Melanie. "Skull proves modern humans came from Africa", The Star, 2007-01-12, pp. 12.
- Wilford, John Noble. "Skull Provides Signs of When Humans Left Africa", The New York Times, 2007-01-11. Retrieved on 2007-01-12.
- Markey, Sean. "Skull Is First Fossil Proof of Human Migration Theory, Study Says", National Geographic, 2007-01-12.
See Also
- List of fossil sites (with link directory)
- List of hominina (hominid) fossils (with images)
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
