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1270 Views 2 Replies Last post: Jun 7, 2011 9:55 PM by pendlebury RSS
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Jun 7, 2011 3:54 PM

Answered afap - Oxford Clay fossils

Thank You very much Luanne for pointing me in the right direction as to how to identify my fossil collection recommending your suggested books. And to everyone one else who has given me some great advice. I'm going to start categorising my finds and set up a face book site to put my whole collection on and additional finds as I go along . Here's a few more finds for you from the oxford clay.

 

1. a tooth but dont no what kind ?

2  Vertebrae or tail bone ?

3. piece of bone with what looks like scales?

4. and one of six possible stomach stones ive found?

 

All the best Darren

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    Jun 7, 2011 3:54 PM (in response to pendlebury)
    Re: Thank  You Luanne Heres Some More To View

    Hi Darren,

     

    I get the feeling that your images might not have attached in the order you intended? In the order of the photos:

     

    1) This is a polished pebble that I suspect you suspect as the gastrolith. For anyone who's unsure a gastrolith is a stomach stone - stones that animals such as dinosaurs swallowed to help grind their food in the stomach. Birds swallow grit for the same reason today. I've been told by experts that the only way to definitively identify gastroliths is to find them in direct association with the fossils they are are associated with, so in place with dinosaur bones for example to suggest they were in the stomach. I have also been told by other experts that if you find a highly smooth pebble in a fine clay where dinosaur bones are known and where pebbles are not found, then there is a good chance of it being a gastrolith. So depending on the exact circumstances of the find (was it in situ in the Oxford Clay?) this might be a probable stomach stone but we can't be sure.

     

    2) I'm not sure what this is and I'm not sure of the size due to the rather cryptic scale is in your photos! could you use a ruler or coin to give a sense of scale if possible in future? It looks like it could be part of a crustacean fossil. Any other ideas anybody?

     

    3) This does look like a fossil vertebra. It doesn't look like ichthyosaur as it doesn't look like it is pinched in enough in the middle of the disk although the photo is not of very good quality and is at a weird angle, so it is possible it is dipped in at the middle but I can't see that. If it's not dipped in at the middle then it is likely to be plesiosaur, although crocodilian is a possibility.

     

    4) I think this is what you suspected might be a fossil tooth? I'm afraid I can't really say from this photo.

     

    Hope this helps as a start,

     

    Luanne

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