Monday, November 7, 2011

What is this?

This might be an easy guess for some of you or maybe not... Let me know what you think in the comments section. I'll be back with the answer in a week or so. Enjoy!


traumador said...

I'm sure I'm wrong, but to me it looks like a Norwhal tusk... Certainly it'll be something prehistoric and convergent, but I only know Norwhals ;)

Robert Boessenecker said...

The spiraling dentine in this tooth fragment indicate it's a Narwhal incisor; walrus and elephant tusks don't spiral like this (some fossil proboscideans may exhibit some spiraling, but IIRC, it is not as tight and the tusk is less perfectly cylindrical).