Sentences with phrase «h. erectus»

Mike Morwood: There are no comparable early hominin discoveries in southeast Asia since Eugene DuBois» finding of the type H. erectus specimens at Trinil, East Java, in the 1890s.

Because of the obvious humanness of the Turkana Boy fossil, and the fact that H. erectus brain sizes overlap the extreme lower range of modern human brain sizes, creationists have nowadays almost entirely abandoned the old line (popularized by Duane Gish) that Peking Man and Java Man are apes, and now generally claim that Homo erectus fossils are a variant form of modern humans (ignoring the inconvenient fact that there are many obvious differences between Homo erectus and Homo sapiens).

But a comprehensive study of the bones of H. floresiensis finds that not only is the species probably older than H. erectus, but it inhabits a completely different limb of our evolutionary tree.

«H. erectus, although not modern by any means, is more modern than H. floresiensis.

Certainly, stranger things have happened, but not everybody thinks we can be «99 percent sure» H. floresiensis is not descended from H. erectus.

«This study is purely based on differences in morphological characters between fossil specimens, with each character weighted equally, and with disregard of any functional aspects of every character,» says Dr. Gerrit van den Bergh of the University of Wollongong in New South Wales, one of the authors of the 2016 study published in Nature that supports the idea that H. floresiensis descended from H. erectus and was made small by insular dwarfism.

Why do they say that the smaller Dmanisi skulls belong to H. erectus and are human, if the man they recognize as the creationist expert on human evolution thinks they are apes?

Most researchers have viewed H. heidelbergensis — or something similar — as a transitional form between H. erectus and H. sapiens.

«If there had been significant contributions from Chinese H. erectus, they would show up in the genetic data,» says Li Hui, a population geneticist at Fudan University in Shanghai.

So although the extreme lower range of modern human brain sizes does overlap that of Homo erectus, their skulls are very different: in H. erectus, the brain case really is smaller in relation to the rest of the skull.

Here is one of Scott's most amazing claims, namely that some H. erectus specimens were actually a subspecies of modern humans, called Homo sapiens giganticus by Scott, which grew up to 12 feet tall.

Groves and Mazak claimed that the mandible was significantly different from H. erectus to deserve its own species designation.

Around 1.8 Ma, there is evidence of Homo georgicus and H. erectus in Eurasia and H. habilis in southern Africa suggesting they may have migrated out of East Africa before this time.

So, another question for AIG: if the Dmanisi skulls are H. erectus, and erectus skulls are «within the range of people today», could they please provide some evidence of modern humans with similar brain sizes?

At this time, ergaster basically means early H. erectus from Africa.

In this standard view of human evolution, H. erectus first evolved there more than 2 million years ago (see «Two routes for human evolution»).

With its odd assortment of features, the creature still provokes debate about whether it is a dwarfed form of H. erectus or some more primitive lineage that made it all the way from Africa to southeast Asia and lived until as recently as 60,000 years ago.

H. erectus skulls are much smaller than those of equivalently - sized modern humans.

In this model, known as multiregionalism or continuity with hybridization, hominins descended from H. erectus in Asia interbred with incoming groups from Africa and other parts of Eurasia, and their progeny gave rise to the ancestors of modern east Asians, says Wu.

H. habilis was small statured, unlike later finds of H. erectus and when more examples of Australopithecus were found in subsequent decades, it was clear the brain size of H. habilis was only slightly larger than that of contemporary australopithecines.

This specimen has been attributed as a male ergaster by some, though most place it in H. erectus, and that is where it will be discussed in detail.

Those who see it as a valid taxon tend to see it as more closely resembling modern H. sapiens than does H. erectus.

Another problem is that Lubenow arbitrarily assigns to H. sapiens many fossils which either belong to H. erectus or other species, or are not readily identifiable.

H. erectus was smaller than the average human today, with an appropriately smaller head (and brain size).

The regional differentiation between African and Asian H. erectus populations, and the eventual transition of the former into H. heidelbergensis, and between H. sapiens and H. neanderthalensis suggests that there was limited gene flow between Africa and Asia.

These observations support studies of the postcranial fossil record which have concluded that H. erectus was an obligatory biped, whereas A. africanus showed a locomotor repertoire comprising facultative bipedalism as well as arboreal climbing.

So he wonders whether the South African hominids may have belonged to H. erectus.

For example, the highest H. habilis value is 752, compared to 727 for the lowest H. erectus value, and 1225 for the highest H. erectus value, well into the normal human range, and well above the value of 1100 that Goodman claims is the top of the H. erectus range.

Even if there was no fossil evidence of the evolution from H. erectus to H. sapiens, Goodman's theory would be unconvincing.

Goodman ignores most of them, but misrepresents at least one: he calls the Rhodesian Man skull a late - surviving H. erectus, when it is, at 1280 cc., larger than any erectus skull and falls nicely into the morphological and temporal gaps which he claims separate H. erectus and H. sapiens.

Another oddity is Goodman's claim that the coexistence of two species (specifically, H. erectus and H. sapiens) shows that they can not have an ancestor - descendent relationship.

For example, the lowest point of Birdsell's line for Homo erectus is about 900cc, even though some H. erectus skulls are known with values smaller than that.

«There is no evidence that this cranium particularly resembles H. sapiens or H. erectus according to either phenetic or cladistic evidence.

These skulls are intermediate between H. erectus and H. sapiens in morphology, time, and brain size, nicely filling the gap which Goodman claims exists between them.

According to that version, H. erectus traveled to the island of Flores and then shrank over thousands of years through a process called «insular dwarfing.»

«Needless to say, there is no evidence of this transition [from H. erectus to H.sapiens sapiens] in the fossil record to date.»

Argue said many features of the Indonesian hobbit's features, such as the structure of the jaw, were more primitive than H. erectus.

Two he does mention, Rhodesian Man and Saldanha, he claims are Homo erectus, in spite of the fact that their brains sizes of about 1280 and 1250 cc are above the maximum H. erectus brain size of 1225 cc, which is in turn well above the value of about 1100 cc that Goodman claims is the maximum H. erectus brain size.

«The origins of the genus Homo are murky, but by H. erectus, bigger brains and bodies had evolved that, along with larger foraging ranges, would have increased the daily energetic requirements of hominins.

Yet H. erectus differs from earlier hominins in having relatively smaller teeth, reduced chewing muscles, weaker maximum bite force capabilities, and a relatively smaller gut.

The brain cases been measured at 546 cm ³ and is clearly attributable to H. erectus.

Whether H. floresiensis is correctly attributed to the genus Homo; if actually a member of an earlier member of the hominin lineage, such as H. erectus; could Hobbit belong to A. afarensis and if so how did Honnit's ancestors get to Indonesia; these are all questions difficult to answer on the evidence currently available.

This compares with 6 and 12 years in modern humans and 3 and 5 years for modern apes, indicating that H. erectus was starting down the road of modern dental development.

But it fits with the fact that H. erectus's brain was much smaller.

This was surprising, as H. erectus walked upright, was about the same size as us and made simple tools — all traits associated with being human, says Dean.

afarensis) were comparable with later Homo species, including H. erectus s. l. and H. sapiens.

1891 The first H. erectus fossils are found in Java.

«It could be something intermediate — between H. habilis and H. erectus,» says Lordkipanidze.

Along with a larger brain — about two - thirds the size of ours — came a reduction in the size and projection of the face, including much smaller teeth and jaws than those of Paranthropus (H. erectus's contemporary in Africa) and loss of the skull crest.

If that's true, then H. erectus may have evolved in Eurasia, an idea rarely entertained.