Homo ergaster: Difference between revisions
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Homo ergaster (Greek derivation: ''working man''), an early '''hominid''', may either have been a predecessor of '''Homo erectus''' or an early Homo erectus. H. ergaster’s presence has been dated variously and may have ranged over a period of 1.9 to 1.5 million years ago. Remains of H. ergaster have been discovered in '''Kenya''' and [[Dmanisi (paleoanthropology) |Dmanisi]] in the [[Georgia (country)|Republic of Georgia]].<ref>[http://anthropology.si.edu/humanorigins/ha/erg.html Homo ergaster] Department of Anthropology, National Museum of Natural History, Smithsonian Institute</ref> <ref>[http://www.msu.edu/~heslipst/contents/ANP440/ergaster.htm Homo ergaster] Steven Heslip, Michigan State University</ref> | Homo ergaster (Greek derivation: ''working man''), an early '''hominid''', may either have been a predecessor of '''Homo erectus''' or an early Homo erectus. H. ergaster’s presence has been dated variously and may have ranged over a period of 1.9 to 1.5 million years ago. Remains of H. ergaster have been discovered in '''Kenya''' and [[Dmanisi (paleoanthropology) |Dmanisi]] in the [[Georgia (country)|Republic of Georgia]]. | ||
==Anatomical characteristics== | |||
H. ergaster had a rounded cranium and a prominent browridge. Compared to '''Australopithecus''', Its teeth were significantly smaller. Features that distinguish H. ergaster from H. erectus were thinner bones of the skull and the lack of an obvious ''sulcus'', or depression, immediately posterior of the browridge. | |||
==Associated artifacts== | |||
H. ergaster evidently used large cutting tools of stone, primarily hand axes and cleavers. These tools represent an advanced stage of stone tool technology known as the '''Achulean''' stone tool industry now believed to have developed after hominid migration out of the region of eastern Africa | |||
<ref>[http://anthropology.si.edu/humanorigins/ha/erg.html Homo ergaster] Department of Anthropology, National Museum of Natural History, Smithsonian Institute</ref><ref>[http://www.msu.edu/~heslipst/contents/ANP440/ergaster.htm Homo ergaster] Steven Heslip, Michigan State University</ref> | |||
==Notes== | ==Notes== | ||
Revision as of 18:42, 24 December 2007
| Homo ergaster Fossil range: Pleistocene | ||||||||||||||
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| Scientific classification | ||||||||||||||
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| Binomial name | ||||||||||||||
| Homo ergaster Colin Groves & Vratja Mazak, 1975 |
Homo ergaster (Greek derivation: working man), an early hominid, may either have been a predecessor of Homo erectus or an early Homo erectus. H. ergaster’s presence has been dated variously and may have ranged over a period of 1.9 to 1.5 million years ago. Remains of H. ergaster have been discovered in Kenya and Dmanisi in the Republic of Georgia.
Anatomical characteristics
H. ergaster had a rounded cranium and a prominent browridge. Compared to Australopithecus, Its teeth were significantly smaller. Features that distinguish H. ergaster from H. erectus were thinner bones of the skull and the lack of an obvious sulcus, or depression, immediately posterior of the browridge.
Associated artifacts
H. ergaster evidently used large cutting tools of stone, primarily hand axes and cleavers. These tools represent an advanced stage of stone tool technology known as the Achulean stone tool industry now believed to have developed after hominid migration out of the region of eastern Africa
Notes
- ↑ Homo ergaster Department of Anthropology, National Museum of Natural History, Smithsonian Institute
- ↑ Homo ergaster Steven Heslip, Michigan State University