According to Sanchoniathon, Ouranos was the son of Autochthon, and, according to Plato, Autochthon was one of the ten kings of Atlantis.
We have seen the Autochthon of Plato reappearing in the Autochthon of the Phœnicians; the Atlas of Plato in the Atlas of the Phœnicians; the Poseidon of Plato in the Poseidon of the Phœnicians; while the kings Mestor and Mneseus of Plato are probably the gods Misor and Amynus of the Phœnicians.
Ampheres, Euaimon (Euaemon), Mneseus, Autokhthon (Autochthon), Elasippos (Elasippus), Mestor, Azaes, Diaprepes: Other sons of Poseidon and Kleito, rulers of Atlantis’ ten regions.
And of the pair that were born next he called the one Ampheres and the other Euaimon (Euaemon); and of the third pair the elder was named Mneseus and the younger Autokhthon (Autochthon); and of the fourth pair, he called the first Elasippos (Elasippus) and the second Mestor; and of the fifth pair, Azaes was the name given to the elder, and Diaprepes to the second.
To the elder of the third pair of twins he gave the name Mneseus, and Autochthon to the one who followed him.
The first two human beings, they tell us, were Protogonos and Aion (Adam and 'Havath), who produce Genos and Genea (Qên and Qênath), from whom again are descended three brothers, named Phos, Phur, and Phlox (Light, Fire, and Flame), because they "have discovered how to produce fire by the friction of two pieces of wood, and have taught the use of this element." In another fragment, at the origin of the human race we see in succession the fraternal couples of Autochthon and Technites (Adam and Quen--Cain?), inventors of the manufacture of bricks; Agros and Agrotes (Sade and Cêd), fathers of the agriculturists and hunters; then Amynos and Magos, "who taught to dwell in villages and rear flocks."
According to Sanchoniathon, Ouranos was the son of Autochthon, and, according to Plato, Autochthon was one of the ten kings of Atlantis.
Autochthon, Atlas, and Poseidon appear in both Greek and Phoenician legends.