The fossils found in the Burgess Shale include the 500-million-year-old ancestors of most modern animals
This painting is a 1997 illustration of an assortment of Cambrian era creatures by D.W. Miller. The large animal in the top right corner is known as Anomalocaris, and Hallucigenia, Wiwaxia and Ottoia are also pictured.
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The Smithsonian is a repository of America's history, achievements, aspirations, and identity. It holds the artifacts of great leaders, and those of ordinary Americans. It houses scientific specimens and technological wonders. It is home to art, music, films, writings-a vast treasure trove of objects of extraordinary beauty and outstanding design.