In his book entitled "BURGUNDY" by Anthony Hanson, this expert writes "Great Burgundy smells of shit. It is most surprising, but something the French recognized long ago, Ça sent la merde and Ça sent le purin being common expressions on the Côte. Not always, of course; but frequently there is a smell of decaying matter, vegetable or animal, about them." )
This might explain the scent I got from my $55 bottle of Pinot Noir.