Earlier this year , a tidy sum of people got excite when an incredible fossil of an ancient spider was discovered . The specimen appeared to be an amazing discovery : an exceptionally keep mammoth spider from the Early Cretaceous previously unknown to skill . alas , it proved to be just a little too incredible for some .

The dodo was reportedly discovered by locals   in the Yixian Formation in China , a geological formation that sweep 11 million years during the Early Cretaceous , make some   125 - 121 million geezerhood ago . They sold the dodo to the   Dalian Natural History Museum , where researchers describe the " new species " in a   theme publish inActa Geologica Sinica . The paper describes a " relatively pear - influence " creature with slim and curving fangs and slender leg covered in fine and politic myopic hairs . The team close that it was a fresh member of the   Mongolarachne genus , an out genus of jumbo spiders that includesM. jurassica , the largest fossilised wanderer ever found , and dub itMongolarachne chaoyangensis .

However , when the paper was seen by scientist in   Beijing , they noticed a few things that were odd about the specimen , which made them pluck up the phone to colleague Dr Paul Seldon , magisterial professor in the Department of Geology at the University of Kansas , who specializes in ancient spider fossils .

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Upon seeing the theme , he directly had his suspicions .

“ I was evidently very doubting . The paper had very few details , so my colleagues in Beijing borrowed the specimen from the multitude in Southern University , and I got to look at it . Immediately , I realized there was something improper with it , ” Professor Selden said in astatement .

" It clearly was n’t a wanderer . "

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Selden noted that the tool was missing segments in its legs , and the eyes were too gravid . It did n’t take long for an explanation to emerge .

" I puzzle and puzzled over it until my colleague in Beijing , Chungkun Shih , said , ‘ Well , you hump , there ’s quite a lot of sea crawfish in this special neighbourhood . Maybe it ’s one of those . ’ So , I realized what happened was I got a very badly carry on rock lobster onto which someone had painted on some ramification . ”

It come along locals excavate up a preserved crawdad and decided to make some money out of it by passing it off as a much more exciting discovery .

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" They obviously picked up this thing and thought , ‘ Well , you know , it looks a spot like a wanderer . ’ And so , they consider they ’d paint on some legs – but it ’s done rather skillfully . So , at first glance , or from a distance , it looks somewhat salutary . It ’s not till you get down to the microscope and count in detail that you realize they ’re clearly thing wrong with it , " Seldon said .

Selden and colleagues , which included   lead author of the original newspaper publisher ,   Xiaodong Cheng , used   fluorescence microscopy to take a closer flavor at the faux fossil . Under the microscope , they were capable to identify areas that were likely crude oil - base paints used to add leg to the fossil , which shows up in chicken , as well as cracks in the rock that had been set with cementum .   They decided to write their own paper on their find of the forgery , publish it in the journalPalaeoentomolgy .

Selden let in the counterfeit was well done and did n’t find fault   investigator at the   Dalian Natural History Museum for   falling for the bogus .

" The masses who described it are perfectly skilful paleontologists – they ’re just not expert on wanderer , ” he say .