new speculation

[Em3plum]

/*So my understanding so far has been this.*/

Kaguya Ootsutsuki's sons were Hagoromo and Hamura

Hagoromo's decendants were Indra and Ashura;

Indra was ancestor of Uchiha;
Ashura was the ancestor of the Senju;

Among Hamura's decendants were the Kaguya clan and Byakugan users; /*my speculation*/

Hyuga clan decended from Hamura;
The kaguya clan members are somewhat similar in appearance to Kaguya;

they had circular spots on the forehead above eyebrows;
they had ponytails(or whatever those are) similar to kimimaro(remember?) on the sides;
kimimaro had cross-hair parting like kaguya (and also white hair);

 

[Agumon]

NIce, I was thinking that too *_*

 

[Umari Senju]

/*So my understanding so far has been this.*/

Kaguya Ootsutsuki's sons were Hagoromo and Hamura

Hagoromo's decendants were Indra and Ashura;

Indra was ancestor of Uchiha;
Ashura was the ancestor of the Senju;

Among Hamura's decendants were the Kaguya clan and Byakugan users; /*my speculation*/

Hyuga clan decended from Hamura;
The kaguya clan members are somewhat similar in appearance to Kaguya;

they had circular spots on the forehead above eyebrows;
they had ponytails(or whatever those are) similar to kimimaro(remember?) on the sides;
kimimaro had cross-hair parting like kaguya (and also white hair);

That's a good observation. You could be spot on with this. Let's see if Kaguya pulls out some bone kekkei genkai here soon.

 

[Ashura San]

So where do the Uzumaki come in?

 

[ShinjuMadara]

Uzumaki and Hyuuga descendend from Hamura's sons who are clearly either Orochi and Jiraiya or Obito and Kakashi