Long time, since I last time posted anything..
Well, here is something I stumbled upon while walking on the (beautiful) dunes near Amsterdam. It clearly is a tooth and I somewhat am confident it about being either some cow or bison, (upper??) molar. I have been second guessing it being an fossil afterall, and would like to get another opinions of it. In my eyes, bottom side looks more like rock than bone with rootcanals..