Burgess Shale fossils

Tokummia is a genus of fossil hymenocarine arthropod, known only by one species, '''Tokummia katalepsis''', from the middle Cambrian (508 million years old) Burgess Shale as found in a quarry in Marble Canyon in Canada.

Herpetogaster is an extinct cambroernid genus of animal from the Early Cambrian Chengjiang biota of China, Balang Formation of China, Pioche Formation of Nevada and Middle Cambrian Burgess Shale of Canada containing the species Herpetogaster collinsi and Herpetogaster haiyanensis.