Transfer-Preparation of a Liangwangshania

Positive side of the "unlucky" split: Some parts of the fossil are still covered

Positive side of the "unlucky" split:
Some parts of the fossil are
still covered

Negative part: the razor-thin remains of the fossil
needs to be transferred back to the positive side

Negative part: the razor-thin remains
of the fossil needs to be transferred
back to the positive side

After gluing the pieces back together, the uncovering can be done

After gluing the pieces back together,
the uncovering can be done

Fortunately the gluing went very well -
the fossil remains are much thinner than the layer of glue..

Fortunately the gluing went very
well - the fossil remains are much
thinner than the layer of glue..

The finished specimen

The finished specimen

The difficult and very delicate gluing is almost invisible - The Fossil is about 0,9 inches long

The difficult and very delicate gluing is
almost invisible - The Fossil is about
0,9 inches long

Details become more clear in wet condition

Details become more clear in wet condition

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Liangwangshania is an incredibly rare arthropod from the famous Chengjiang-Biota, which contains some of the most bizarre and extremely well preserved fossils. The soft slate is relatively easy for preparation, as long as there is a good separation between fossil and matrix. Although one needs very calm hands that can work sensitively enough to preserve the tiny details.

This specimen was badly split up on two pieces of rock. That kind of “unlucky” split has fossil remains on both sides, so that they have to be glued back together. This task can be very challenging, as a very precise gluing is necessary in order to prepare the fossil afterwards. In this case the fossil is only a fracture of a millimetre thick, so that the layer of glue is actually thicker. Fortunately the gluing went just as planned and the Liangwangshania could be properly prepared. 

Fossil: Liangwangshania biloba 

Locality: Chengjiang (China)

Formation: Lower Cambrian, Yuanshan-Member

Total Length: 0.9 inch

Collection: York Yuxi Wang

Work required: 3 hours