A interesting double with a complete Peronopsis montis and a negative of Chancia palliserae on the backside.


The famous Burgess shale and its unique and famous fossil beds was discovered in the year 1909 by Charles Doolittle Walcott. Since 1981 is this fossil lagerstaette a UNESCO World Heritage Site because its localisation in the Yoho National Park and of course also its high significance for the understanding of the early life on our planet.

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