
could be a kind of pareidolia though, but it does resemble a footprint
EDIT: Piss
( , Sun 8 Jul 2012, 21:25, Reply)

www.google.co.uk/imgres?imgurl=http://2.bp.blogspot.com/-TZaiO98EzmM/TfnlXC5a1TI/AAAAAAAADro/aM-JJ5rUJXY/s400/Canadiandollar_devilshead.gif&imgrefurl=http://hellaheaven-ana.blogspot.com/2011/06/pareidolia-took-queens-elizabeth-dollar.html&h=164&w=149&sz=14&tbnid=Q2spiXcs2uzGIM:&tbnh=98&tbnw=89&prev=/search%3Fq%3Dpareidolia%2Bpictures%26tbm%3Disch%26tbo%3Du&zoom=1&q=pareidolia+pictures&usg=__7u6HetNk8fym933Jwy26Liwp44s=&hl=en&sa=X&ei=fO35T8UzwpbRBaGytP8G&ved=0CBUQ9QEwAA
( , Sun 8 Jul 2012, 21:30, Reply)

not dismissing what you found, just saying it could be a trick. I can see a snowman, mickey mouse shouting out of a megaphone and a sperm. Doesn't mean their there though...
( , Sun 8 Jul 2012, 21:40, Reply)

but this leaps out to me as being a boot print with out having to squint or turn my head around three times.
i do unerstand that this could be , and most probably be passed of as marsh gas with the light of venus shining through at just the right angle to confuse.
( , Sun 8 Jul 2012, 21:45, Reply)