One of the busy work tasks I’ve been doing is going through all of the micro teeth and matrix... repeatedly lol I found two teeth from Cookiecutter Creek micros that I am flat out stumped on. No clue.
The first one is larger, 6mm or so. I can only describe it as very flat. The cusp sits at an odd angle on an odd root. I am not even sure it’s shark.
The second is about 4mm and I have no clue. I didn’t see anything in the paper describing Isistius and Squatina that stood out as a possibility.