Mollisonia fossils are more common and better preserved in the Marble Canyon rocks than at the original Burgess Shale quarry site, found in 1909.
A cleaned and preserved Leanchoilid fossil reveals the animal's delicate appendages.
Bottom of the food chain
Haplophrentis, a tiny organism that lived in a conical shell and had two arms that reached outward, perhaps to pull itself along the seafloor. Fossils of these creatures have been found in the guts of other predators.
Naraoia is a trilobite with only two protective shields on its carapace, instead of the usual three.
A double rainbow breaks above the researchers' field camp in Kootenay National Park.
Live Science newsletter
Stay up to date on the latest science news by signing up for our Essentials newsletter.