Yeah Id go for the IE thing, we have lots of anatomical place names here thatd make it relevant today but Id go more for a cow or a woman rather then a man being dismembered. It fits morewith the lit and how significant that animal was from the iron age on. And Id just like to upset the uber animal rights and uber feminist nuts
That's an interesting take on it. I'd definitely like to research the possibility of a cow replacing a man in this myth structure. Found this today:
http://pierce.yolasite.com/yamamyth.php which references the presence of cows/bulls in some Purusha type myths, while it's still definitely a man or twins in others.