Occipital condyle?

[Fin Lover]

I don't know bones very well yet, but my guess on this one is part of a cetacean occipital condyle.  Found in Summerville, SC, in a creek where I find cetacean verts and small cetacean teeth (as well as shark teeth, etc.).  Oligocene through Pleistocene layers are present, but there seems to be more Oligocene than anything else.  Longest part is 4.25 inches.  Any thoughts?  Thank you!

  

[Brandy Cole]

I'm trying to get a feel for the overall shape of this piece.  Is your third picture a depicting the opposite side of the first picture, or is it more of a side view?

[Fin Lover]

The third picture is the other side of the first picture, but flipped upside down.  The second picture is really just to show the extent of the curvature.

[Fin Lover]

My guess may be way off, but I found a piece of one from a baleen whale before (in the same creek) and this has some similarities but is smaller.  If I have to tag Bobby I will, I just hate to bother him if it's not necessary.  

[shark57]

I think you have this one correct. I have collected several fossil dolphin skulls, and the piece you have there looks like one side of the condyle and part of the back of the skull.