Disclaimer: Of course I should have read the article first. On the photograph of the stone, both features look exactly the same - like suns. My second guess wa

Disclaimer: Of course I should have read the article first. On the photograph of the stone, both features look exactly the same - like suns. My second guess was a bird, because it looks a lot like the birds as used in heraldic art from ancient Egypt to modern Germany[1]. That doesn't mean the bird can't be a sign for a super nova at the same time. But the bird theory is strong, because of the Egyptian root "hr" [2], which variously means "above" and the sky god Horus, which is depicted in hieroglyphs with ... an eagle. Whether that's by direct import into asia or by rediscovery is probably mere speculation. But the term Proto-afro-asiatic alone is pretty suggestive already, nevermind that one of the reconstructed roots pertains to this word [3], although, as far as I can tell, to the other, allegedly separate but obviously not all too distantly related meanings of hr. [1] for example https://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Coat_of_arms_of_Germany.svg/85px-Coat_of_arms_of_Germany.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Co... [2] at time of writing under "etymology 2" down the page https://en.wiktionary.org/wiki/%E1%B8%A5r https://en.wiktionary.org/wiki/%E1%B8%A5r although I'm not convinced there is much of a distinction to be made. [3] https://en.wiktionary.org/wiki/Reconstruction:Proto-Afro-Asiatic/%C4%A7%C9%99r https://en.wiktionary.org/wiki/Reconstruction:Proto-Afro-Asi...