Shark tooth? North Carolina

[GayleMG 1]

I found this tooth (same tooth, two sides) in some phosphate mine slag from the Aurora Fossil Museum. Can you tell what species this is? I don't see anything quite like it on the charts I've consulted.

The other pic is from the same slag and is some kind of ray, I believe.

[Al Dente 4,532]

The first is a piece from a Notorhynchus tooth, the second might be part of a Plinthicus tooth.

[GayleMG 1]

Thanks Al Dente!

[will stevenson 1,294]

the first is notorhynchus as @Al Dente said, nice findthe 2nd thing could benefit from a light scrub with a toothbrush and photos from different angles

[GayleMG 1]

OK, I'll try that. It's so tiny!