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Unknown fish element i.d. help needed


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I still continue to find this particular type of fossil. But can't quite seem to take a description of the find beyond (probable fish element). 

 

Found from the Peterborough Member (Callovian, Middle Jurassic) of the Oxford Clay. more commonly known as the Lower Oxford Clay. 

 

Also just to say other identical finds to this one seem to have the same appearance, shape, size and colouration. And are quite sporadic when found. 

 

All suggestions welcome. 

 

Scale bar is in millimetres. 

 

 

 

 

2018-05-01_08-32-10.jpg

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Sorry Continued here as I couldn't reduce photos:

2018-05-01_08-32-31.jpg

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Sorry Continued here as I couldn't reduce photos: 

2018-05-01_09-06-11.jpg

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Fossildude19

Hey Darren, 

I think you have an operculum, or a suboperculum. 

Regards, 

 

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Xiphactinus

I'll second the operculum or suboperculum ID

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Tidgy's Dad

Nice find! :)

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32 minutes ago, Fossildude19 said:

Hey Darren, 

I think you have an operculum, or a suboperculum. 

Regards, 

 

 

That's Interesting @Fossildude19

and something I wouldn't have thought off. I wonder why it's always this particular series of bone found. And no other part of the fish. That's if of course it is one of the opercular series.

 

Edited by DE&i
Typo
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Fossildude19

Darren,

I think it may be that you find these particular bones because the operculum tends to be fairly thick, and therefore more easily preserved. 

It seems to be a bone that may not be attached as firmly to the skull as other bones. 

I often find solitary or paired operculums of the coelacanth Diplurus newarki, disarticulated and separate from other skull bones.

Regards,

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@Fossildude19these particular finds are very fragile, but that might be from the fossilisation process itself. Or they are from one of the more delicate Jurassic fishes. As opposed to the more robust caturus species to be found. 

 

Interesting that this bone could have drifted of from the fish as we'll. As that would certainly sound plausible. 

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Raggedy Man

To reduce your file size, you can email them to your self. Most email platform's allow for file reduction. If you use windows, windows paint has an option to reduce image size. If you use Mac, try photoshop. The easiest however, is the email option.

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Thank you @Raggedy Man all noted and will prove very useful while on the go and away from my home computer. 

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