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Arthur1
Hi

I think this bone nodule has come from near Whitby. Has anyone any idea what it is - ichthyosaur ?



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Arthur1
can anyone help with the identification ?
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ophthalmosaur

Wish I could help but that's difficult to ID. The cell structure looks large and open not like ichthyosaur more like plesiosaur or pliosaur. One of the bones looks like an occipital condyle. 

Can you give us any more info. or photos?

Paul


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Arthur1
Thanks for the reply

Here are some more photos including some closeups - I’m not sure if they will help

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Arthur1
the specimen has very smooth, rounded “bones” which remind me of the end of bone joints. But I have googled your occipital condole suggestion and I can see why you’ve suggested that- there are some similar images .
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ophthalmosaur

I agree. There do look to be limb bone sections in there. Do you think it could be crocodile? 

Paul


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Arthur1
I’m not knowledgeable enough to know if it’s crocodile or not.
It’s even harder for you to guess looking at photos
It’s a bit of a conundrum!
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ophthalmosaur
The only thing I can suggest is cleaning some more of the matrix off. Didn't someone find some dinosaur bits that looked similar a couple of years back?

regards

Paul


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Arthur1
It might be another candidate for professional prepping ( it will have to join a long queue !) The matrix is reasonably soft but I’m worried that I might make a mistake and damage the specimen
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Arthur1
I’m working my way through a rack of ribs at the moment !

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ophthalmosaur
Very nice. Is that from the E. Coast too? I know the problem. I've got septarian nodules that need professional prep. using an industrial grinder. Sometimes the only way with this 'sticky' matrix is to grind it down to within a couple of millimetres of the fossil surface then pen it off. 

regards

Paul

DSCF3780.jpg 
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Arthur1
Yes, east coast
What a brilliant specimen - how long has it taken you to prep that so far ?
I must be on about 10 hours prep
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ophthalmosaur

At least 10 hours, but the tools I've got (pendant dremel) aren't up to it. Trouble is there's a lot more of the fossil too.

Paul
DSCF3602.jpg    block1_1500.jpg  block1b_1500.jpg  left side lblocks_1600.jpg  DSCF3639.jpg
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Arthur1
Wow, that’s amazing.
Very jealous

Tim
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ophthalmosaur

Thanks Tim

Are some of those finds you made dinosaur, do you think?

Paul


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Arthur1
Most of my specimens are from the Whitby, Robin Hoods Bay Area, so no dinosaurs I’m afraid
I’ve spent most of my life collecting minerals , but since recently retiring have taken an interest in fossils.
It’s a steep learning curve - some fossils are easy to identify, some I haven’t got a clue !!
This forum is a fantastic way of learning more ,and talking to fellow enthusiasts/experts
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ophthalmosaur


Tim

I think marine reptiles are just as interesting. 

Yes, but there was a sauropod found at Whitby see:

https://blog.everythingdinosaur.co.uk/blog/_archives/2015/06/02/britains-oldest-sauropod.html

cheers

Paul

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Arthur1
Very interesting
I thought it was a marine environment near Whitby
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