Many spiders and insects, like this ground beetle, have only survived as fossils because they were trapped in amber. The largest and prolific fossil amber deposits are from the Eocene in the Baltic (like this one, from 50 million years ago) and the Miocene in the Dominican Republic.
The shape of the internal organs is often outstandingly preserved, but all attempts to extract fossil DNA from amber inclusions have been without success so far (because of the biochemistry of inclusions in amber, which is fundamentally altered).

On display in Hall IX

Copyright: NHM Vienna, Lois Lammerhuber