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BBK
Hi

I don’t usually venture into the chalk, but this morning I decided to take a trip to the bridgwick pit near Lewes, Sussex.

I found a few bits and pieces, some damaged echinoids and crinoid stem.

There was also what I assume is a fish tooth (8mm) and a gutter fill of fish scales (5-6cm). Before I pack it away in the box of rubbish fossils in the loft, I just wanted to check in case it could actually be a partial fish? I doubt it as there doesn’t seem to be any structure, but better safe than sorry.

Many thanks
Henry
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Brittle Star
Hi

Do not think it is a gutter fill, I think you have bits of a fish, if you look on the right hand side it looks a bit like scales. The fish is obviously more than a bit chomped. I wonder if there is anything inside. I did not think you got gutter fills in chalk.
The smaller piece on your echinoid photo maybe be a star fish arm or a bit of a crinoid, hard to tell, you can see more than me if you say it is crinoid, have a closer look.

Well done.
JW

 Never ask a star fish for directions
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BBK
Thanks Brittlestar

I hadn't even considered the option of starfish arm. It could well be. Ill do some research into that option.

My initial thought were the same regarding the fish; that you wouldn't get gutter fills in chalk, but i just couldn't see any sort of structure to it. I will have to do a few more trips back there to familiarise myself with the chalk.

Thanks again
Henry
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Brittle Star
Hi look at the cross section of the end of the crinoid/starfish, that is a dead giveaway.
JW

 Never ask a star fish for directions
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prep01
Hello BBK, I don't have access to my library at the moment but it looks like 2 echinoids, crinoid ossicles articulated, tooth and fish remains ( I can see bones and scales). the crinoid ossicles are not at all common in the chalk.
Colin Huller
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quagga
I have found quite a few crinoid ossicles at Bridgwick pit. Isocrinus? granosus. I believe that the type specimen is from there.

http://www.chalk.discoveringfossils.co.uk/3isocrinids.htm

Your fishy bits do seem to contain scales and bones. Could it possibly be a lobster burrow?

The urchins could be Sternotaxis plana, but hard to tell from the photo.
Al
Time is nature's way of stopping everything happening at once.
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Rolo
A fairly common chalk fossil often mistaken for a fish is Terebella lewesiensis, this is a tube like structure lined with jumbled fish debris. It is considered to be the burrow of a type of worm. I suspect that is what you have.
Alan
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prep01
Rolo, I have several T lewesiensis burrows and they are usually well defines with just scales lining them, but this looks more like a disseminated carcase.

DSCN5351.jpg 
Colin Huller
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Rolo
Could be Colin.
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