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2205 Views 12 Replies Last post: Oct 29, 2015 9:44 PM by Tabfish RSS
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Oct 27, 2015 9:24 PM

Calcified Ammonite?

Hi again,

 

This was my first ever fossil find and I was so excited, I believe it to be a section of a calcified ammonite as you can see the tell tale ridges even though unfortunately the elements have worn them down.  I would be really grateful if someone could confirm this for me?

 

Many thanks

 

Sarah

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    Oct 28, 2015 9:23 PM (in response to Rahrah212)
    Re: Calcified Ammonite?

    Hi Sarah

    Your specimen is part of a very large Cretaceous ammonite, allthough well worn you can still see some of the crearures ribbing.

    Nice find.

     

    Tabfish

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    Oct 29, 2015 8:00 AM (in response to Rahrah212)
    Re: Calcified Ammonite?

    Agree - chunk of large chalk ammonite about 80 million years old - note the oysters which were attached to the outer shell which has dissolved away leaving the oyster scars behind.  I could add more if you say which locality/beach you found it (?Peacehaven)

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    Oct 29, 2015 8:02 AM (in response to Rahrah212)
    Re: Calcified Ammonite?

    Meant to add it is the internal cast of the body chamber - solid chalk.  The original ammonite shell has gone - still a fossil though.

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        Oct 29, 2015 10:21 AM (in response to Rahrah212)
        Re: Calcified Ammonite?

        Unlikely Bournemouth or Watchet - no Chalk there.  Maybe Lulworth Cove or Durdle Door area or North Swanage...???

         

        Open this in New Tab (rt clk)

        Chalk outcrop map.JPG

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    Oct 29, 2015 12:15 PM (in response to Rahrah212)
    Re: Calcified Ammonite?

    Can you post as "Answered"?

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    Oct 29, 2015 9:32 PM (in response to Rahrah212)
    Re: Calcified Ammonite?

    If you want to see the largest try Googling Parapuzosia seppenradensis Images 

    These are genuine - no Photoshopping!  The largest I have seen was 4.5ft across on the wave-cut platform at Peacehaven in Sussex (where the South Downs meet the English Channel)

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      Oct 29, 2015 9:44 PM (in response to Dr T)
      Re: Calcified Ammonite?

      When you see something like that (4.5ft ammonite) what do you think?

      I want it!

      Can I move it!

      Get help!

      Take many images because - You have to walk away.

      Been there on the Holderness, sadly.

       

      Tabfish

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