Michael has put up yet more Tafoni pictures, obviously still stinging from my earlier usurpation of the whole tafoni pictures thing. As such, I shall respond with yet more images of these artsy weathering pits in sandstones! The picture below is from the Ordovician St. Peters Sandstone, in Governor Dodge State Park, Wisconsin, where I was on a little camping jaunt earlier in the week.
Anyway, you might notice that Michael's pictures from the Santa Cruz Mtns are much better than my picture above; this is undoubtedly due to the fact that 1) His Rocks Are Better Than These Scrappy Ord. Ss from Humid Wisconsin; and 2) He Is A Better Photographer Than I Am. Both of these are rather unfair advantages, frankly, and Michael should be ashamed of himself for exploiting them so mercilessly like that.