Large Oligocene Fossil

[Gtrex0823]

This fossil was found by my uncle on the beaches of Onslow county in North Carolina. The fossil is roughly 18-19 inches long and 3-4 inches in width at its base. Any help is appreciated, ty.j

[Herb]

IDK, but it is cool/

 

[Gtrex0823]

55 minutes ago, Herb said:

IDK, but it is cool/

 

Thank you

[Carl]

The only thing this reminded me of was a very odd beach find from Block Island, RI, sent to me in 2004. Our ichthyology curator IDed is merely as "a type of tail bone of a very large fish." See attached photo. But it could also be a knot from a petrified tree. Can you provide extreme close-ups of the texture?

[FossilDAWG]

@Boesse might have an idea.

 

Initially I thought wood, but the second image from the top on the right hand side seems to show symmetrical sutures, as if this was some sort of a rostrum or similar elongated skeletal structure.

 

Don

[Max-fossils]

When the piece is dry, could you try burning it?

The result of that might help us determine what kind of thing we're dealing with... 

[Auspex]

1 hour ago, Carl said:

The only thing this reminded me of was a very odd beach find from Block Island, RI, sent to me in 2004. Our ichthyology curator IDed is merely as "a type of tail bone of a very large fish." See attached photo. But it could also be a knot from a petrified tree. Can you provide extreme close-ups of the texture?

My first impression was hyperostosic bone also.

[Gtrex0823]

Here are a couple pictures that show similar symmetry that @FossilDAWG was talking about.

[Gtrex0823]

Here are a couple close ups of the texture @Carl

[Carl]

The new photos convince me that we have a bone here, at least.

[ynot]

Giant sized tilly bone(?).

[Gtrex0823]

1 hour ago, ynot said:

Giant sized tilly bone(?).

What is a tilly bone exactly?

[Harry Pristis]

13 minutes ago, Gtrex0823 said:

What is a tilly bone exactly?

 

An overgrown bone in a bony fish.