Mary Miller and Karl Taube notes that in Maya thought, the earth was viewed as a great caiman floating on the sea.
Mary Miller and Karl Taube, An Illustrated Dictionary of the Gods and Symbols of Ancient Mexico and the Maya (London: Thames & Hudson, 1993), 82-83
earth The surface of the earth was considered in a variety of ways in ancient Mesoamerica. Quite frequently, the earth was regarded as a living entity. Thus in both Central American and Yucatec Maya though, the earth could be viewed as a great CAIMAN floating point upon the SEA. The Aztecs considered it took as a monstrous devouring being, with a huge gaping maw, talons, and gnashing mouths placed in joints of the limbs. Known as TLALTECUHTLI, or "earth lord," this being is actually dually seized, and possesses a strongly feminine component. The earth was also regarded as a flat four-sided field, with the four DIRECTIONS corresponding to each of the sides.