but also to the original specimen face.

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In early 2009, scientists have proposed that in Gansu found "new species Coriolis Cheetah", is the world's most primitive cheetah, which overthrew the existing hypotheses about the "oldest cheetah comes from North America," the. Because of the importance of this discovery was widely reported by international media. Recently, however, this statement has been questioned. Cheetah originated in where? Draw attention once again.
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"The oldest cheetah" fossil suspected of fraud
When can reach 112 km fastest / h sprint speed, cheetahs worthy of the animal world sprint champion. As large felines a highly endangered, it is now only distributed in Africa and West Asia. The cheetah originated in the end where the scientific community has been there, "said the origin of the cheetah New World" and "Cheetah Old Continent of origin, said" dispute.
In early 2009, the United States' National Academy of Sciences, "published in the Danish scientist plum? Christiansen and China Shanghai Science and Technology Museum Huang Ji's article,http://www.fukushi-hiroba.com/magazine/cgi/talk/ftalk.cgi?res=188, they allegedly produced cheetah skull China Linxia Basin, according to an establishment A new species of Coriolis cheetah, and that this is the world's most primitive cheetah, which concluded that "the oldest cheetah from China, rather than in North America!" in. This finding provides strong evidence for the "Old World origin Cheetah says."
But recently, the same expert from China on the "oldest cheetah" fossil raised the question that fossil suspected of fraud, the research process is also flawed. American Journal of March 4 issue of "Science" attention this dispute.
Some questioned []
Cheetah fossil specimens are pieced
According to Shanghai media reports at the time, early 2008, Huang Ji cheetah get a complete fossil skull from Gansu and political area, length 18 cm or so. After paleomagnetic analysis of information cited judgment, the fossils dating back at least 250 million years, which is in the North American continent, and had found the oldest cheetah fossils "age" comparable. More valuable is that this skull fossil,louboutin pas cher, called the world's most primitive known, the most complete fossil cheetah.
Of the above studies questioned the Chinese Academy of Vertebrate Paleontology and researcher at the Institute for Human Deng Tao,air jordan pas cher femme, he told the "Beijing Science and Technology News," "I was at the end of 2008 found that 'the oldest cheetah fossils problem."
As in the "oldest cheetah" fossil found to Linxia Basin for many years Vertebrate Paleontology workers,mulberry outlet, Deng Tao received the invitation to the United States 'National Geographic' news columns for the paper to be published in the United States after a two-day "National Academy of Sciences There are important findings published papers allotted comment "on.
"After I carefully read the paper, was found only on the basis of their cheetah's just a piece of skull fossils, fossil illustrations alone is supplied from the paper, I initially thought this was problematic patchwork fossil specimens." Deng Tao said. Dengtao Li engraved with fossil preservation units, the second author of the paper Huang Ji Shanghai Science and Technology Museum in hopes of specimens by direct observation further determine the truth, but Huang Ji was a "fossil is our greatest treasures,air jordan 5 pas cher,http://www.dz155.com/home.php?mod=space&uid=15782, subject to the approval of the leadership to see "refused this request.
Skull is a plaster model
Although he did not live to see the fossils, however, Deng Tao believes that as an expert in the study of fossils, from Illustrations can also easily see the problem this specimen.
Deng Tao introduction: "For example, the side of the skull photos clearly show the zygomatic arch is not only unnatural high and wide, with a lack of cheetah-like orbital angular protruding after the conflict, but also with clear boundaries skull stitching by This proves that not only does not belong to the zygomatic arch skull, or even simply the zygomatic arch is not carnivorous animals! "
"Look at the back of the skull fossil photos, parietal region mimic modern cheetah skull, apparently bonded together by a piece of bone, but those who did not create fake cheetah should top crest, thereby exposing the flaws."
"There are parts of the fossil skull, and also mimic the modern cheetah. Shaped by plaster and paint, and some large circular plaster plaques and uncolored portion of the top and occipital clearly visible, there are many smear rear skull traces of gypsum,tn femme pas cher, indicating that the skull is a plaster model. "
"Fossil ventral photos show, the entire group occipital completely filled by gypsum, I judge probably because this region is too complex fossils, have no way to fake counterfeit, had to fill in a block of plaster,http://www.middleeast.org/read.cgi, so here do not see any anatomical structure. "
Deng Tao worked for many years in the field of fossil dealer Linxia region has been very understanding. "Like fake cheetah skull means this is quite common, I have seen hundreds of pieces of different animals similar to 'complete' skull."
"I and Huang Ji communication process surprised to know, did not see the fossil specimens not only his own paper's first author and corresponding author plum Danish scientist? Christiansen actually have not seen the fossils, is provided according to Huang Ji photos on fossil is described, and finally completed the papers. "Deng Tao said.
Teeth leaked "the oldest cheetah" true identity
In addition, the plum? Christiansen and Huang Ji said this skull specimen from "and political" age of about 2.2 million to 250 million years.
"In fact, and political is not a place but a state of Linxia County, there has yet been found in loess deposits of fossil mammals. The so-called 'fossil-rich sites' does exist, but is located in Linxia Togo County Longdan locations, Qiuzhan Xiang academician, who has been published in the 2004 Long Tam fauna monographs,air max tn pas cher, new species produced Pro  cheetah on Long Tam,http://bbs.auctiongs.com/forum.php?mod=viewthread&tid=2497596&extra=, the material including skull and some other of two separate skull taken off the mandible or mandible. "Deng Tao said.
In May? Christiansen and Huang Ji paper published as part of the main fossil skulls have been found close to the modern cheetah, but which part of the tooth has undergone some "deformation", closer to the original Cheetah. In this regard, Deng Tao said tooth portion has a very important significance identified in identifying cheetah, the third premolar length "oldest cheetah" fossil specimens is 18.6 mm, while the Pro  cheetah third premolar length of 18 ~ 19.5 mm; fourth premolar length of the former is 27.7 mm, while the Pro  cheetah fourth premolar 26.9 ~ 31 mm long.
"Comparison of the results showed that Huang Ji said 'oldest cheetah fossil tooth shape and size actually falls within the range of variation of the Pro  cheetah."  tune.
[Argument] is not broken
Skeptics Deng Tao: proposals for a comprehensive repair specimens
By the end of 2010 an US "Science" magazine interview about the Chinese fossils fraud, the "oldest cheetah" fossil suspected fraud as a typical example.
After the US "Science" magazine published reports, Huang Ji recognize fossils through plaster repair. Magazine March 4 issue of "Science" sustained attention of the relevant issues,abercrombie femme, published Huang Ji and plum? Christiansen letter and Deng Tao et al comment. ? Huang Ji and plum Christiansen illustrate this specimen of the zygomatic arch and occipital indeed by plaster repair into a complete look at the letter, he said: "Yes traffickers unfair means in order to enhance the commercial value of the fossil specimens and the use of But this patch does not affect the 'oldest cheetah' conclusions. "
"I am very pleased to see this statement,http://58lox.com/home.php?mod=space&uid=141717, but I still think this is a patchwork of fossil skull, is a patchwork of using a false front and rear cheetah skull fossil." For Huang Ji and plum? G Lisiqinsen explanation, Deng Tao said in response.
"Fossil repair is a very important part, as a rigorous science, repair parts must be able to clearly identify,woolrich milano, can not be confused with the real part." Deng Tao said. Reporters saw the fossil specimens are placed in different colors indicate the repair part, or draw a clear line in Deng Tao office.
"But we in the 'oldest cheetah fossils do not see the fossil itself and gypsum have any boundaries. This is a serious error fossil research!" Deng Tao said. Forgery or error repair part once discovered must be removed from the specimen, and more fundamentally,scarpe hogan, the patch can not be added as part of the fossil contents of the study.
For questions on how to solve, how to identify genuine and fake fossils, Deng Tao suggestions, please who is familiar with the region, Gansu and political authority restoration experts fossils, specimens comprehensive repair, to remove part of all fraud and error stitching, but also to the original specimen face.
Huang Ji authors: defect does not affect the conclusions
Reporter twists and turns to find Shanghai Science and Technology Museum Research and Design Institute of Huang Ji. He admitted that at the time when the United States' National Academy of Sciences "published too hasty, no part of the fossil and plaster repair part to distinguish.
"But I think it's just that time of ill-considered." Huang Ji told reporters. But he stressed that this defect does not affect the conclusions drawn oldest cheetah fossils. "Because, no paper to analyze and describe the gypsum part." Huang Ji also admitted, first author and corresponding author plum Danish scientist? Christiansen did not see too fossil specimens.
Meanwhile, Huang Ji stressed that these flaws do not affect the conclusions of the paper, "and later" science "on the matter has also been concern, we the" Science "provides a fossil X-ray diagram,http://www.0470xmzl.com/forum.php?mod=viewthread&tid=42989&fromuid=11509, X-ray diagram part of the fossil and plaster repair part to distinguish our study did not part on the plaster been described, I still think Keshi cheetah cheetah from other fossils, including the Pro  cheetah is significantly different, for example, length,air jordan pas cher, skull length, the first the length of the third and fourth premolars. "Huang Ji said.
In the interview,giubbotti moncler outlet, Huang Ji also said, "Everyone is welcome to look at the fossil."
Mr Chan / text According to "Beijing Science and Technology News"
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Cheetah originated dispute
Sprint champion land,jordan pas cher, brave and noble but endangered big cats, this is what we are familiar with the cheetah. However, at the same time concerned about this species status quo,http://bbs.fznews.com.cn/home.php?mod=space&uid=1105747, but few people know its origin.
The oldest known American cheetah, the fossil was first discovered in the United States, Texas, Nevada and Wyoming. They already have many of the modern cheetah similar body structure features, including a shorter face and extended nose, which helps extend the respiratory tract when run, provide the body with more oxygen.
Some researchers believe that the cheetah appeared in Europe early members of the genus giant cheetah, is the oldest cheetah, they looked like a modern cheetahs,http://repository.aichi-edu.ac.jp, but the size is much larger - almost as big as the modern African lion, shoulder up to 91 cm, suggesting that weigh up to 90 kg.