Tiny shark teeth ID

[Jazfossilator]

These little guys keep popping up in my collection as I sift through attempting to identify all of my teeth, I'm thinking small extinct tiger shark teeth but I always have trouble with the little ones. Any help appreciated-found Myrtle Beach, South Carolina

[Brett Breakin' Rocks]

Because of that heavy nutrient groove .. the location ... and lack of serrations the two smallest are most likely Sphyrna sp. aka. 'Hammerhead' shark teeth.

 

Late Oligocene sharks and rays from the Chandler Bridge
Formation, Dorchester County, South Carolina, USA
DAVID J. CICIMURRI and JAMES L. KNIGHT

 

For Reference: K & L

 

[Jazfossilator]

4 minutes ago, Brett Breakin' Rocks said:

Because of that heavy nutrient groove .. the location ... and lack of serrations the two smallest are most likely Sphyrna sp. aka. 'Hammerhead' shark teeth.

 

Late Oligocene sharks and rays from the Chandler Bridge
Formation, Dorchester County, South Carolina, USA
DAVID J. CICIMURRI and JAMES L. KNIGHT

 

For Reference: K & L

 

I think you've got it right, the slight curvature at the points of the bottom teeth steered me away from thinking hammerhead. However I do see some examples with the same thing after a quick search. Thanks for the quick response and helpful info