bought this online the add claimed it was a fossil of a frog just the back legs and back...claimed they were wiped in phosphates?...more like wiped entirely off
but then I inspected the stone it was odd in itself...I even inspected it with a microscopic camera no frog..no trace of frog...so went looking for more on the stone and came up with this as a possibility?.......
Fossil fish Eodiaphyodus Granulosus mouth crusher plate?....did a search and that came up