Cipactli
Cipactli (Classical Nahuatl: Cipactli "crocodile" or "caiman") was the first day of the Aztec divinatory count of 13 X 20 days (the tonalpohualli) and Cipactonal "Sign of Cipactli" was considered to have been the first diviner. In Aztec cosmology, the crocodile symbolized the earth floating in the primeval waters.