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brym

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Jurassic Jumper
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Reply with quote  #1 
We had a very unproductive trip to Mappleton on Monday, all I found were a few bivalves including a rather nice Oyster and a rather worn Echinocorys. Annoyingly my wife found this Ammonite nodule and couldn't understand why I was excited by it.

Spiny5.jpg 

I have begun to prep it and it looks promising. Am I right in thinking it's a Peronoceras? and I would be grateful for any prepping advice. Should I go in at from the outer whorl towards the centre or follow the line between the whorls? Thanks Brian.


Spiny4.jpg  Spiny3.jpg  Spiny2.jpg  Spiny1.jpg 



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Hydrangea

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Reply with quote  #2 

That's a great find by Mrs Brym!
It's not a Peronoceras - much rarer than that, I think it's a Xipheroceras.
I'm sure Andy will give you a positive ID.

regards.

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Hydrangea

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.....  on second thoughts, not a Xipheroceras, perhaps Eoderoceras.

regards.

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brym

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Reply with quote  #4 
Thanks Roy, I've ceased all preparation and will leave it to a pro. I don't mind practising on a Dact but I'm not going to risk a rarity. I'd jumped to the conclusion of Peronoceras as I'd read they were a spiny version of Dacts, found on the Yorkshire coast.

Regards Brian
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Elbert

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Reply with quote  #5 
Hello, looking at the ribs of this ammonite, sharp and straight, I tend to think Oistoceras sp.

greetings, Bert

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brym

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Reply with quote  #6 
Thanks Bert, I've just sent it off for preparation, I'll put photo on when it's done.

Regards Brian
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