The Burgess Shale, in British Columbia, Canada, is famous for its preservation of soft bodied fossils from the Cambrian Period, when multicellular life was relatively new. It preserves an number of creatures which can be recognised as ancestors of our current biota as well as many other forms which were not successful in evolutionary terms.
You can find out much more about at this link, which contains a variety of links to more detailed pages:
Filed under: Palaeontology, Stratigraphy
