* Marco è raffigurato come leone. ###>The elements of the Christian tetramorph first appear in the vision of Ezekiel, who describes the four creatures as they appear to him in his book:::"As for the likeness of their faces, they four had the face of a man, and the face of a lion, on the right side: and they four had the face of an ox on the left side; they four also had the face of an eagle.