Fossils? Rocks? Four Uniquely Shaped Items In Need Of Identification

[InquisitiveOsteology]

I need help identifying a few "potential" fossils I found on Topsail Island in eastern North Carolina, USA. Below are four coin size specimens. I have plenty of questions about each -- mainly, are they even fossils in the first place? -- but all and any additional information is also welcome Thanks!

1.)

2.)

3.)

4.)

[Harry Pristis]

#1 and #3 could be scraps of beach-polished bone; but, probably none of these is a fossil.

[InquisitiveOsteology]

Thanks!

To me, #4 slightly resembles part of a mandible. Do you have any ideas on that?

[lissa318]

These are all just speculation from a newbie but 1 kinda resembles part of a drum fish mouthplate. 2 a boring hole from a clam. 3 might be a small turtle shell piece and 4 no clue... Welcome to the forum!!!

[InquisitiveOsteology]

I appreciate the feedback. Still wish I could ID them, though *sigh*

[lissa318]

I'm pretty sure #3 is turtle can't be 100% sure though. #2 I'm also pretty sure is a boring hole and that one is modern. Look up drum fish mouth plates and compare to your first and see if it looks similar?!

Edited July 4, 2015 by lissa318

[InquisitiveOsteology]

Thanks

[sixgill pete]

Sorry, 1,and 2 are worn rocks from offshore, probably from the dredge project, same as the items in your other post. #4 looks like a well worn piece of broken shell. #3 could be a very very worn piece of turtle shell, but it is so worn a positive ID would be very hard to make.