Board Thread:Naruto Discussions/@comment-28414362-20150812151040/@comment-5936871-20150812160505

The story was clearly retconned. Hamura and the rest of the clan went to the Moon to protect the Gedo Mazou right after he and Hagoromo defeated the Ten-Tails and sealed it's chakra into Hagoromo. Then years later, Hagoromo had Asura and Indra, and then even more years later on his deathbed. Hagoromo extracted the Ten-Tails' chakra from himself and created the nine Tailed Beasts from it, then he scattered them all over the world, then he chose Asura as his successor and passed on his Six Paths Senjutsu to him and died.