Canadaspis had claws on the end of its frontal appendages which may have been used to stir up sediment, or to scrape off the top layer,[1] which may have been a nutritious layer of microbes. Large particles it stirred up would have been captured by spines on the inside of its legs; these spines would have directed the food particles to the organism's mouth, where it used its mandibles to grind larger particles.[1] Canadaspis is very closely related to the similar organism Perspicaris, differing only in morphological detail.