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Resin Set Specimens



Hi,

This isn't strictly a dinosaur thing, but I'm hoping someone on here may be
able to help. And it may be relevant for others who work in museums too.

Among the many delights I've encountered since starting at Bolton was a
partial plesiosaur skeleton, set into a hard yellow-orange resin. It's been
used as a handling object by our education department for many years now.
Well, I've now found the rest of the skeleton and come to two conclusions.

1.It's an Icthyosaur. The resin cast "head" was among the pieces I found.
It's basically the tip of an Icthyosaurs jaws. The rest of the skull is
missing. This didn't stop the intrepid caster however, who attached the jaws
to the last of the vertebrae and then sculpted the outline of a head around
the whole mess!

2.I'd really like to get it out of the resin, giving me the opportunity of
displaying what would probably be a pretty decent specimen.

So, the actual point of all this. Has anybody any idea how to safely remove
the fossil from the resin? anybody encountered this before?

I'm guessing some form of heat treatment is my best option, but any
advice/offers/suggestions are most welcome.

Cheers,

David Craven

Bolton Museum

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