This is a very old and relatively common idea.
Apsu and Tiamat. Tiamat is the dragon of the bitter waters - a dragon of the abyss, a female's countless possible births. Apsu is the dragon of the sweet waters - the rivers and the deciding factor in what among all that could be is.
This is reflected in the Taoist concepts of Yin and Yang, respectively. Yin is the feminine - the infinite nothing that is all yet indetermined. Yang is the divine impulse that gives form to what receives it. Of course, Taoist physics don't allow us to interact at the divine level easily. The human elements do not include the divine or pure yang state. Taoist alchemy is the quest for achieving that state of pure divinity where one can truly create something new, rather than simply be part of a causal chain of consequences.
Uroburos, itself, is the image of a dragon eating its tail. It is the cycle of death and rebirth, the cycle of the seasons, the repetition of history, etc. The closest Taoist equivalent would be The Yellow Dragon - the embodiment of change as the only fixed concept in the WuXing. Included in this is the very existence of the Yellow Dragon Emperor, who was a man who ascended to godhood.
Snakes are not the same as dragons. Even many western dragons are closer to those that come from the Asian cultures.