Orphica, Theogonies Fragment 57 (from Athenogoras) :
"The gods, as they [the Greeks] say, did not exist from the beginning, but each of them was born just as we are born. And this is agreed by them all, Homer saying ‘Okeanos (Oceanus) the genesis of the gods, and mother Tethys [Thesis],’ and Orpheus--who was the original inventor of the gods' names and recounted their births and said what they have all done, and who enjoys some credit among them as a true theologian, and is generally followed by Homer, above all about the gods--also making their first genesis from water : ‘Okeanos , who is the genesis of the all.’ For Hydros (Water) was according to him the origin of everything, and from Hydros (the Water) Mud [. the primordial Gaia (Earth)] formed, and from the pair of them a living creature was generated with an extra head growing upon it of a lion, and another of a bull, and in the middle of them a god's countenance; its name was Herakles and Khronos (Chronos, Time). This Herakles generated a huge egg [which formed the earth, sea and sky]."