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Strange NJ Cretaceous Fish Bone


The Jersey Devil

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The Jersey Devil

Hi everyone, I have this partial fish bone from the Late Campanian of New Jersey, 72 Ma. I have never seen this type of bone structure before, but for some reason it reminds me of some type of rostrum (billfish?). It is a little over an inch at greatest dimension.

 

Any ideas are appreciated!

 

4B2D6F12-8735-4AB7-979D-B100ABCEE5F4.jpeg

C4120FFC-03F6-4EAC-ABC6-216702466482.jpeg

910DF47D-5F90-44A7-81F6-D3090DB7AA87.jpeg

B9AAF4A5-D1DF-45FC-BDBB-CD10F3B42CF6.jpeg

BE93486C-6AFE-4775-966A-8B97FB2F07A3.jpeg

70C32133-9082-4B25-AF34-A26AFD153B45.jpeg

AF5B5410-F272-4E53-9ABE-04C0F711DBC8.jpeg

1B8FCE78-3BCD-48E4-B4F6-BA64B3CD1601.jpeg

Edited by The Jersey Devil
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7 hours ago, The Jersey Devil said:

rostrum (billfish?)

Protosphyraena ?

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The Jersey Devil
6 hours ago, Rockwood said:

Protosphyraena ?

 

That would be very interesting as Protosphyraena is extremely rare here. Do you know if it or other similar-age fish have the same structure?

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Fossildude19
21 minutes ago, FossilNerd said:

Tim may have an idea. 

 

@Fossildude19

I've got nothing. 

I'm better with older fish, honestly. :shrug:

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hemipristis
On 7/14/2019 at 4:17 PM, Rockwood said:

Protosphyraena ?

I found this image online:

EPC1994-04.jpg

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The Jersey Devil
4 hours ago, hemipristis said:

I found this image online:

EPC1994-04.jpg

 

4 hours ago, Rockwood said:

Maybe. I was thinking rostrum though.

 

Thanks guys!

It definitely looks very similar. However, I am not entirely sure that Protosphyraena is the only fish that possessed that type of structure.

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I'm not seeing enough there to even feel confident it's a fish. Certainly interesting and definitely looks like bone.

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The Jersey Devil
6 hours ago, Carl said:

I'm not seeing enough there to even feel confident it's a fish. Certainly interesting and definitely looks like bone.

 

What would it be if it’s not fish? It definitely doesn’t have that reptilian/dinosaurian bone structure.

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I actually have a piece with a similar pattern. I thought it was turtle shell and never gave it a second thought but I could be wrong so isn't an attempt to ID, just a comparison piece.

IMG_20190715_181109.jpg

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The Jersey Devil
5 hours ago, frankh8147 said:

I actually have a piece with a similar pattern. I thought it was turtle shell and never gave it a second thought but I could be wrong so isn't an attempt to ID, just a comparison piece.

IMG_20190715_181109.jpg

 

Neat piece Frank. Could you please take some more pics of the different sides?

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I can imagine both pieces being from a Protostegid plastron perhaps.

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9 hours ago, The Jersey Devil said:

 

Neat piece Frank. Could you please take some more pics of the different sides?

Sure! I should be able to get some more pictures this afternoon. 

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17 hours ago, The Jersey Devil said:

 

What would it be if it’s not fish? It definitely doesn’t have that reptilian/dinosaurian bone structure.

I'd use caution with a piece this small. I've seen this kind of texture on turtles, as mentioned, and I've seen "what else could it be" go tragically wrong too many times to use it cavalierly.

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The Jersey Devil
4 hours ago, Carl said:

I'd use caution with a piece this small. I've seen this kind of texture on turtles, as mentioned, and I've seen "what else could it be" go tragically wrong too many times to use it cavalierly.

 

Well, alrighty thanks for the heads up. I think it looked “fishy” when I looked at its side structure :P.

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A day late and a dollar short but here are the other angles of mine..

turt1.jpg

turt2.jpg

turt99.jpg

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Dollar short ! You kidding ?

Looks like turtle texture to me.

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The Jersey Devil
38 minutes ago, frankh8147 said:

A day late and a dollar short but here are the other angles of mine..

turt1.jpg

turt2.jpg

turt99.jpg

 

Yeah, that is definitely a turtle peripheral.

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  • 2 weeks later...
non-remanié

I lean towards Protosphyraena but that's not the only option.  I believe it is bony fish.   More precise locality info might help.   I think Enchodus opercular bones have a similar surface pattern or texture as well. 

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The Jersey Devil
16 hours ago, non-remanié said:

I lean towards Protosphyraena but that's not the only option.  I believe it is bony fish.   More precise locality info might help.   I think Enchodus opercular bones have a similar surface pattern or texture as well. 

 

If it is Protosphyraena, would it be part of the fin like in the picture posted above?

 

Could size rule out Enchodus?

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  • 7 months later...
The Jersey Devil
On 8/2/2019 at 12:21 AM, non-remanié said:

I lean towards Protosphyraena but that's not the only option.  I believe it is bony fish.   More precise locality info might help.   I think Enchodus opercular bones have a similar surface pattern or texture as well. 

 

I was thinking, could Pachycormiformes cover the possibilities better?

https://en.wikipedia.org/wiki/Pachycormiformes

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