Yes, it's shovel teeth. You can probably find a drawing somewhere on the internet. I have one somewhere in my archives. You can tell by running your tongue along the back of your teeth. This is a characteristic that can carry forward by hundreds of years.
Here's a link to a picture (won't let me right-click). Yes, I do indeed have "shovel teeth", but that's probably thanks to the Mexican Indian in me. The info I read said it's an "Asian" or "Indian" trait. So, it's fair to say that if someone has shovel teeth, they are not pure Northern European?