Find a motherlode of information about the Burgess Shale in this informative guidebook. Useful if you’re planning a trip to Yoho National Park, site of these famous 500-million year old fossils.
Find a motherlode of information about the Burgess Shale in this informative guidebook. Useful if you’re planning a trip to Yoho National Park, site of these famous 500-million year old fossils.
