EEB Associate Professor Jean-Bernard Caron discovers fossil worm in the Burgess Shale which pushes back earliest known date by 200 million years. Jean-Bernard is curator of Invertebrate Palaeontology at the Royal Ontario Museum

Spartobranchus tenuis from the Burgess Shale (image courtesy Jean-Bernard Caron)

See article in U of T News

Published online March 13 in Nature (2013) doi:10.1038/nature12017