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WillW
Certainly not an expert on Dorset material, so happy to be wrong. But could it be an escape structure of some sort?

W.
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DorsetJack
The good lady brought this back last night - after soaking on water for a wee while and giving a bit of a brush with the toothbrush and picking a few bits off, this is what is there (so far).
Does anyone have any ideas?
The one thing you will get from breaking rocks with a hammer is a lot of broken rocks...
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Vert Finder
Looks like a nautilus? I have a couple of crushed ones from under Stonebarrow; they are pretty rare from there, I think (assuming that yours is from Stonebarrow).
Thanks, VF
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DorsetJack
Looks a bit 'nautilus-y' doesn't it - I have found one down there before and it does bring it to mind..

I'm thinking the flat thing to the right may be some kind of oyster type thing?

And aye - Stonebarrow area... :D

The one thing you will get from breaking rocks with a hammer is a lot of broken rocks...
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martcol
I'm going to go for a Terry's chocolate orange.......

Joking aside, it does appear that a couple of 'segments' have moved outwards. I can't see how that could happen with a nautilus. Initially it looked like the mouthpiece of something like Anomalocaris, but that's way, way off.
I'd love to find Hallucigenia
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DorsetJack
It is a weird looking thing and I suppose I'll know more when I take more of the matrix off...
The one thing you will get from breaking rocks with a hammer is a lot of broken rocks...
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aurelius
I'm certain that's a heavily worn nautilus cast.
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Stuck.in.mud!
Ichthyosaur eyeball?
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beatpete
I agree with Aurelius, it's a nautiloid
Beatpete
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Anywhere for little ammonites, twice as far for big ones!
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Ganymede12
How can you distinguish between a nautiloid and an ammonoid if you can't see the suture lines?
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DorsetJack
I think in this case especially it seems fairly obvious there are no suture lines or the individual segments would have shown them at the borders.
Ammonites usually break at a suture and the pattern of the last section is usually fairly obvious, although often worn
The one thing you will get from breaking rocks with a hammer is a lot of broken rocks...
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sd41
An Mosasaur or Icthyosaur sclerotic ring????
Fossil hunting...What a rush! :)
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MrPolly
Nautiloid for me.
Cheers,

Mr P.
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