Dugong bone fragments or something else?

[Dnicewave]

Found in Myrtle beach, black exterior white interior on all but 6, that said 6 is included because it is solid without the porous interior. 3 does not have the shape of a rib but has the same non porous interior as the others. 2 is interesting because it has some marks on the exterior that look like teeth scrapes. Any help is always appreciated. Thank you all and I can’t wait to learn more. I’m a novice at identifying but a pro at hunting fossils. 

[Fossildude19]

@Fin Lover  @Al Dente  @Shellseeker  @MarcoSr  @sixgill pete

[Fin Lover]

You definitely have some bone fragments, but I'm not seeing dugong rib (possibly #6, but I'm not confident from the pictures).  It is extremely dense so you won't see the typical bone texture in the middle of it.

 

Edited 21 hours ago by Fin Lover

[MarcoSr]

 

3 hours ago, Fossildude19 said:

@Fin Lover  @Al Dente  @Shellseeker  @MarcoSr  @sixgill pete

 

I'm not familiar with fossils from Myrtle Beach.  I do have dugong bones, but they look different from these pieces.  From the pictures, I'm not convinced that most of these pieces are even bones.  They look more geologic to me.  Maybe @ynot can comment if they look geologic.

 

Marco Sr.

[Shellseeker]

3 hours ago, Dnicewave said:

Found in Myrtle beach, black exterior white interior on all but 6, that said 6 is included because it is solid without the porous interior. 3 does not have the shape of a rib but has the same non porous interior as the others. 2 is interesting because it has some marks on the exterior that look like teeth scrapes. Any help is always appreciated. Thank you all and I can’t wait to learn more. I’m a novice at identifying but a pro at hunting fossils.

 

If you are a pro at hunting fossil, I would definitely like to see more of your finds  !!!

You are hunting on the edge of of vast ocean that has been collecting mammal bones  for millennia.  On identification skills,  every time you see a bone, You might immediately say "  Marine Mammal"  That's what I do and I am correct almost all the time..

It is important for Marine Mammal,  especially LARGE marine mammals, to do every thing possible to reduce the weight of those bones.  I have noted over time that there are a lot of holes/bubbles in Marine mammal bones.  This is also true of very large land mammals.  There are a lot of predators in the Oceans and the most common one is sharks. 

You might note whenever you see a bone, whether is is a small fragment of a much larger bone or possibly when the diameter, if not the length of the bone is complete,

 

Comments:

#1 The interior bone is porous. Dolphin/Whale bone is most common.  I can see 6-7 tiny holes and long groves on the dark side of the bone. My experience tells me that such features exist more frequently on Jaw bone.

#2  As you say,  porous, scars made by predators,  almost certainly sharks

#3  porous again,  a chunk from a much larger bone

#4 Looks like a flat small rib,  Probabilities would imply a dolphin.  You might look on the internet complete dolphin bones to see if they are similar

#5 Porous , looks like shark bites on this one also

#6 This looks like a small diameter bone,  I would be thinking Dolphin or Sea Turtle

 

Very low probability that any of these are dugong, although Dugong is a marine mammal.  

 

These are all speculations that roll around in my head when I pick up a bone from the Peace River.. More speculation than identification