Chancelloria is a genus of early animals known from the Middle Cambrian Burgess Shale, the Comley limestone, the Wheeler Shale, the Bright Angel Shale and elsewhere. It is named after Chancellor Peak. It was first described in 1920 by Charles Doolittle Walcott, who regarded them as one of the most primitive groups of sponges. However, they are currently thought to be member of the group Chancelloriidae. 178 specimens of Chancelloria are known from the Greater Phyllopod bed, where they comprise 0.34% of the community. References External links Burgess Shale fossils Enigmatic prehistoric animal genera Taxa named by Charles Doolittle Walcott Fossil taxa described in 1920 Cambrian genus extinctions Wheeler Shale Paleozoic life of Newfoundland and Labrador Paleozoic life of Nova Scotia Paleozoic life of Quebec