Burgess Shale's Weird Wonders
The fossils found in the Burgess Shale include the 500-million-year-old ancestors of most modern animals
- By Smithsonian.com
- Smithsonian.com, July 16, 2009
(J.B. Caron, with permission of the Royal Ontario Museum and Parks Canada © ROM)
Anomalocaris canadensis was one of the largest of the Burgess Shale specimens (its claws were shown in the second slide) and one of the most widely distributed, having been found in China, Greenland and Utah. It was placed in a class of an extinct group of primitive, ocean-dwelling arthropods. This fossil was discovered in 1992 by a ROM team in the Raymond Quarry, just above the Walcott Quarry.