Found a small tooth in matrix I had collected from a trip I did a few years ago to Niobrara County in Wyoming, the Lance Formation.  Went through my Hell Creek/Lance Books, Papers and Guide and had no luck with anything.   Tooth looks like a croc, shape and base but it has a spoon crown with a center ridge that is very different than most teeth I've seen and throws me for a loop.  Hopefully someone has seen something similar.   Thank you for any assistance.     Lance Formation and its