Ottoia prolifica

Middle Cambrian
Burgess Shale, Stephens Formation
Field, British Columbia
Canada

Ottoia is a predatory archaeopriapulid worm. Shells of small hyolithids are often found in the gut, showing that these animals may have been common prey. Three complete Ottoia (61mm, 46mm and 33mm) on big 203mm slab. Very rare and unusually large piece.

See: https://en.wikipedia.org/wiki/Ottoia