Leanchoilia was a strange creature with whip-like appendages that it might have slung around to grab prey. It was about 2" long and was very common. The name is pronounced Lee-an-COY-lee-ah.
Scientists don't know for sure how Leanchoilia found its prey because no eye fossils have been found.
Leanchoilia was probably good prey because it's small and it didn't have anything that could really hurt a predator.