Board Thread:Naruto Discussions/@comment-2198188-20140420225832/@comment-3568954-20140625231711

Georgio722 wrote: Sharingan, Mangekyo Sharingan and Rinnegan had markings on the eye, compared to Sage Mode eye with markings outside the eye. You can even say that Dojutsu was descended from the Shinju's Beast Form and Senjutsu was descended from the Shinju's Tree Form.

the 10 tails is not the shinju's beast form its kaguya's beast form. they said that the juubi was created by kaguya