13-03-06

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FAKE KEICHOUSAUR FOSSILS

KEICHOUSAUR fossils from China have been faked for decades.  So long in fact, that the 20+ year flood of fakes has stigmatized the appreciation and desire of genuine specimens amongst experienced collectors.  By sheer numbers sold, Keichousaur fossils remain the most popular fake Chinese fossil, despite this.  Each day, we observe fossil dealers pawning off very obvious, poor quality fakes as being GENUINE.  There also seems to be an endless supply of ignorant buyers thinking they are getting a REAL Triassic fossil skeleton for a couple hundred dollars.  It is rather easy to detect the fakes from the real specimens and the photos presented here should illustrate what to look for in a fake.  ALL photos shown here are of FAKE KEICHOUSAUR FOSSILS that were sold as 'genuine' by unscrupulous dealers.

HOW THEY FAKE KEICHOUSAUR FOSSILS

The techniques are varied as to what the Chinese do to fabricate KEICHOUSAUR fossils.  Most employ a combination of these techniques which include:

1) Casting a reproduction from a mold of a genuine specimen.  The duplicates are then broken and repaired to appear genuine since genuine specimens are usually repaired.  Sometimes, the repairs are glued back together with white cement.  The repairs show as white lines running across the slab.  This is done to replicate the appearance of calcite veins running through the fake fossil - another trait of a genuine specimen.

2) Making a flexible latex mold of a genuine skeleton and filling with epoxy putty.  This filled mold is pressed over a genuine rock slab to recreate a 3D fossil skeleton.  The putty is then carved to look like a Keichousaur skeleton and stained black or gray to appear like genuine bone.  This displays as a three-dimensional skeleton like a genuine example.  Cuts and scrapes are made around the bones to look like preparation marks.  Under magnification, you can see the lack of bone detail and sometimes air bubbles or small voids.  The stain will be applied to look like a skeleton but anatomy will be slightly incorrect and the stain will be sometimes carelessly applied to flat regions or non-carved portions.

3)  Technique #2 is applied directly to a blank rock slab with no putty.  Carving is done AROUND the fake skeleton and the region AROUND the skeleton is lowered.  Dark stain is then applied to the bare rock.  The fake bones will lack crisp edge detail and the skeleton will have a "painted by hand" appearance rather than definitive, true bone detail and consistent anatomy amongst identical bones such as ribs.  Sometimes the carving is very smooth and lacks crisp detail (as just mentioned) and sometimes the carving is crude.  The crude type carving is usually rather sloppy and cuts and gashes are made in the rock to remotely resemble bones.  These hastily carved areas are stained but the stain does not follow the carved areas, necessarily.  Carved spinal columns will not be much more than a raised ridge or couple of simple ridges as seen in the below image.  There will not be accurate spaces and detail between each vertebra like a real spinal column has.  Ribs and other bones will have a "hand-painted" appearance instead of the minute detail of a real skeleton.  If you see features like these mentioned,  you DEFINITELY HAVE A FAKE!  See below images.

The next three images are all of the same FAKE fossil Keichousaur.  The dealer that sold this in an EBay auction stated that it was "100% Genuine with No Fabrication or Work Done".  Quite the contrary, the ENTIRE PIECE IS A 100% CARVED AND PAINTED FAKE.  The images he supplied were most damning despite his guarantee.  They are the best images we have seen that demonstrate the features of a CARVED FAKE KEICHOUSAUR!  The first image below is suspicious-looking enough with carved and faceted bone surfaces that lack normal bone surface curvature.  The Chinese fossil faker was too lazy to even carve the rest of the neck and head so this is just painted right on the flat rock and minimally scraped around.  The last two images were shot from shallow angles and superbly show nothing more than the work of a Chinese carver's knife and not a genuine fossil.  When viewed from these angles, the carved bone fakery becomes plainly visible and the lack of any detail where the rock stops and the bones start is the key feature of a FAKE!


23:56 Gepost door Rudi | Permalink | Commentaren (0) |  Facebook |

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