We have earlier encountered a variant of this type of sign in the calendar of the week (in Keiti).

Could the 'fork' at right in this type of glyph be the same as is shown on top on the sun?

    

It might be that the right part of toga is an arm, an arm in which the hand then can take the form of Y.

... And then the bone spoke; it was there in the fork of the tree: Why do you want a mere bone, a round thing in the branches of a tree? said the head of One Hunaphu when it spoke to the maiden. You don't want it, she was told. I do want it, said the maiden. Very well. Stretch out your right hand here, so I can see it, said the bone. Yes, said the maiden. She stretched out her right hand, up there in front of the bone. And then the bone spit out its saliva, which landed squarely in the hand of the maiden. And then she looked in her hand, she inspected it right away, but the bone's saliva wasn't in her hand. It is just a sign I have given you, my saliva, my spittle. This, my head, has nothing on it - just bone, nothing of meat. It's just the same with the head of a great lord: it's just the flesh that makes his face look good. And when he dies, people get frightened by his bones. After that, his son is like his saliva, his spittle, in his being, whether it be the son of a lord or the son of a craftsman, an orator. The father does not disappear, but goes on being fulfilled. Neither dimmed nor destroyed is the face of a lord, a warrior, craftsman, an orator. Rather, he will leave his daughters and sons. So it is that I have done likewise through you. Now go up there on the face of the earth; you will not die. Keep the word. So be it, said the head of One and Seven Hunaphu - they were of one mind when they did it ...