It seems that these images first appeared in imperial Roman times. See examples in Tran Tam Tinh, Catalogue des peintures romaines (Latium et Campanie) du musée du Louvre (Paris: Editions des musées nationaux, 1974), pp. 50–51, fig. 57; and Doro Levi, Antioch Mosaic Pavements (Princeton, NJ: Princeton Univ. Press, 1947), vol. 1, pl. 294–304, 66b. For a discussion of the Roman dining arrangement known as the stibadium, see Katherine Dunbabin, “Triclinium and Stibadium,” in Dining in a Classical Context, ed. William J. Slater (Ann Arbor: Univ. of Michigan Press, 1991), pp. 121–148.