Homo erectus

Homo erectus

[hoh-moh i-rek-tuhs]
Homo erectus, extinct hominid living between 1.6 million and 250,000 years ago. Homo erectus is thought to have evolved in Africa from H. habilis, the first member of the genus Homo. Anatomically and physiologically, H. erectus resembles contemporary humans except for a stouter bone structure. The size of its braincase (850-1000 cc), approaches that of H. sapiens, but the cranial bones are more massive than either those of H. habilis or modern humans.

The material culture of H. erectus was significantly more complex than that of its predecessors, including Achuelian stone tools (see Paleolithic), a variety of tools fashioned from wood and other perishable materials, the use of fire, and seasonally occupied, oval-shaped huts. Evidence of extensive cooperative behavior is abundant in a number of European habitation and hunting sites, including Terra Amata, France, and Terralba and Ambrona, Spain. H. erectus populations occupied these sites seasonally, while pursuing an annual subsistence cycle based on a combination of big-game hunting and the gathering of shellfish and plant foods.

H. erectus dispersed into Asia more than 1.3 million years ago, and into Europe by at least 400,000 years ago. Fossils of this species were first discovered in 1891 by French anatomist Eugene Dubois in Java. The specimen, which came to be known as "Java man," was at first classified as Pithecanthropus erectus. H. erectus remains, originally dubbed "Peking man" (Sinanthropus pekinensis), were also found in China at the Zhoukoudian cave near Beijing in the late 1920s. Some scientists classify Heidelberg man (500,000-year-old remains found near Heidelberg, Germany, in 1907) as H. erectus, but others place it with archaic H. sapiens.

See also human evolution.

See B. A. Sigmon and J. S. Cybulski, Homo erectus (1981); N. Eldredge and I. Tattersall, The Myths of Human Evolution (1982); M. H. Day, Guide to Fossil Man (4th ed. 1984); G. P. Rightmire, The Evolution of Homo Erectus (1990); D. Johanson, L. Johanson, and B. Edgar, Ancestors (1994); C. C. Swisher 3d et al., Java Man (2000); P. Shipman, The Man Who Found the Missing Link: Eugène Dubois and His Lifelong Quest to Prove Darwin Right (2001).

Homo erectus(Latin; “upright man”)

Extinct species of early hominin, perhaps a direct ancestor of human beings (Homo sapiens). Homo erectus flourished from circa 1,700,000 to 200,000 years ago, ranging widely from Africa (where the species probably originated) to Asia to parts of Europe. Most of the anatomical differences between H. erectus and H. sapiens concern the skull and teeth, H. erectus showing a low, thick braincase (800–1,100 cc) with jutting browridges and a wide nose, palate, and jaw together with large teeth that are nevertheless hominin and not apelike. The limb bones are similar to those of H. sapiens, indicating that H. erectus was of medium stature and walked upright. The species is associated with the Acheulean tool tradition and was the first hominin to master fire and inhabit caves. Seealso human evolution; Java man; Zhoukoudian.

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Homo erectus soloensis (formerly classified as Homo sapiens soloensis) is generally regarded as a subspecies of the extinct hominin, Homo erectus. The only known specimens of this anomalous hominid were retrieved from sites along the Bengawan Solo River, on the Indonesian island of Java. The remains are also commonly referred to as Ngandong, after the village near where they were first recovered.

Though its morphology was, for the most part, typical of Homo erectus, its culture was unusually advanced. This poses many problems to current theories concerning the limitations of Homo erectus behavior in terms of innovation and language. Due to the tools found with the extinct hominid and many of its more gracile anatomical features, it was first classified as a subspecies (once called Javanthropus) of Homo sapiens and thought to be the ancestor of modern aboriginal Australians. However, more rigorous studies have concluded that this is not the case. While most subspecies of Homo erectus disappeared from the fossil record roughly 400,000 years ago, H. e. soloensis persisted up until 50,000 years ago in regions of Java and was possibly absorbed by a local Homo sapiens population at the time of its decline.

Notes

External links

  • Morphology of Solo man Anthropological papers of the AMNH
  • Early Indonesia content excerpted from Indonesia: A Country Study, William H. Frederick and Robert L. Worden , eds. Washington, DC: Federal Research Division of the Library of Congress, 1992

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