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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:14 pm
The remains of this juvenile male have provided much information about growth, development, and body proportions of an early member of the species.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:14 pm
Early African Homo erectus fossils (sometimes called Homo ergaster) are the oldest known early humans to have possessed modern human-like body proportions with relatively elongated legs and shorter arms compared to the size of the torso.
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Abhishek
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on Wed Jan 16, 2019 12:14 pm
Although it has been recognized for some time that Africa as well as Asia was peopled by at least one form of H. erectus, the situation in Europe is less clear.
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daksh007
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:14 pm
At that time, Pithecanthropus (later changed to Homo) erectus was the most primitive and smallest-brained of all known early human species; no early human fossils had even been discovered in Africa yet.
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:14 pm
One of the oldest European hominin fossils is an isolated mandible (lower jawbone) with teeth, found in 1907 in a sandpit just north of Mauer, Germany, near Heidelberg.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:14 pm
These features are considered adaptations to a life lived on the ground, indicating the loss of earlier tree-climbing adaptations, with the ability to walk and possibly run long distances. Compared with earlier fossil humans, note the expanded braincase relative to the size of the face
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:14 pm
Dating to about 500,000 years ago, it has been given a variety of names over the years (see Heidelberg jaw), but its exact relationship to other fossils remains uncertain, partly because no associated cranium was found. Some investigators have come to regard the Mauer mandible as representing H. erectus.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:14 pm
The most complete fossil individual of this species is known as the ‘Turkana Boy’ – a well-preserved skeleton (though minus almost all the hand and foot bones)
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:15 pm
Although its age is perhaps comparable to that of the older Zhoukoudian hominins in China, this European specimen shows more modern structural features than do the Asian and African jaws of H. erectus.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:15 pm
dated around 1.6 million years old. Microscopic study of the teeth indicates that he grew up at a growth rate similar to that of a great ape. There is fossil evidence that this species cared for old and weak individuals. The appearance of Homo erectus in the fossil record is often associated with the earliest handaxes, the first major innovation in stone tool technology.
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:15 pm
The exact significance of these features in the Mauer jaw is still being debated, and some consider it a separate species (H. heidelbergensis) that is slightly more advanced in its anatomy than the African and Asian populations.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:15 pm
Early fossil discoveries from Java (beginning in the 1890s) and China (‘Peking Man’, beginning in the 1920s) comprise the classic examples of this species. Generally considered to have been the first species to have expanded beyond Africa, Homo erectus is considered a highly variable species, spread over two continents (it's not certain whether it reached Europe), and possibly the longest lived early human species - about nine times as long as our own species, Homo sapiens, has been around!
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:15 pm
Another fossil that may tentatively be grouped with the Mauer mandible is a lower leg bone (tibia) found in 1993 during excavations at Boxgrove, West Sussex, England.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:15 pm
Eugène Dubois, a Dutch surgeon, found the first Homo erectus individual (Trinil 2) in Indonesia in 1891. In 1894, Dubois named the species Pithecanthropus erectus, or ‘erect ape-man.’ At that time, Pithecanthropus (later changed to Homo) erectus was the most primitive and smallest-brained of all known early human species; no early human fossils had even been discovered in Africa yet.
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:15 pm
More convincing evidence for the presence of H. erectus in Europe has come from Ceprano in central Italy, where a skull lacking its face was found in 1994.
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:15 pm
Clay deposits surrounding it contain no volcanic material that is directly datable, but the fossil is probably somewhat older than the Mauer mandible.
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:15 pm
The Ceprano individual displays the heavy continuous brow, low braincase, angled rear skull, and thick cranial bones that are characteristic of H. erectus.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:16 pm
We humans call ourselves Homo sapiensHomo erectus is a fellow member of our own genus. Alive from 1.89 million years ago to 143,000 years ago, he was the first to leave Africa and the first to master the use of fire.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:16 pm
 Known in Africa as Turkana Boy, in China as Peking Man, and in Indonesia as Java Man, H. erectus had a wide variety of forms.
We will take a look at the different forms of Homo erectus, but first we will locate his place on our family tree.
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:16 pm
To reconstruct the position of H. erectus in hominin evolution, it is essential to define the place of this species in time.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:16 pm
Humans are just one ape on the primate family tree. We, along with the other apes, split off from chimps around six or seven million years ago. 
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:16 pm
Modern paleoanthropologists have at their disposal a variety of techniques that permit them to do so with great precision. Potassium-argon dating, for instance, can provide the age of a specimen by clocking the rate at which radioactive isotopes of these elements have decayed.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:16 pm
After that, various upright walking apes from several genera evolved. All of the upright walking species, including us, are called hominids, from family Hominidae.
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Abhishek
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:16 pm
When radiometric methods cannot be applied, investigators may still ascribe a relative age to a fossil by relating it to the other contents of the deposit in which it was found.
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kavita123
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

on Wed Jan 16, 2019 12:16 pm
We are Homo sapiens, belonging to the genus Homo. There are several extinct members of genus Homo. One is Homo neanderthalensis, with whom we have interbred, while another is Homo habilis, who was known for being one of the early stone tool users.
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What are the features of Homo Erectus?  - Page 7 Empty Re: What are the features of Homo Erectus?

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