I've been reading http://www.imperial-library.info/fsg/nazzarticle4.shtml and http://www.imperial-library.info/obscure_text/complete_dragonbroke.shtml, and I noticed that Marukh supposedly danced on a Tower, which could have also been a staff, which broke into eight pieces (which I guess represent the 8 Divines). This seems pretty similar to the Staff of Chaos, which was forged from the essence of the land (according to the http://www.uesp.net/wiki/Lore:Staff_of_Chaos), which also broke into 8 pieces.
I assume the "essence of the land" refers to the Earthbones (which if I recall correctly, are the Aedra, or at least the embodiments of them), so it seems to me like the two staffs could be one and the same.
Am I on to something here?
Or I dunno. Maybe I need to lay off the sugar.