Only one contributor solved the mystery photo perfectly correctly so Wilma received the virtual gold star for identifying it as a fossil fish. Well done to Adrian, TexWisGirl and Sue Garrett who recognised it as a fish.
On to what will probably be the last Guess What photo until the new Year as it is getting harder to find suitable things to photograph at the moment. This one was taken today.
No prizes. Just for fun.
The correct answer, along with any guesses left in the comments, will be revealed next Monday.