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533 Views 10 Replies Last post: Jan 7, 2014 7:11 AM by Dan RSS
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Jan 4, 2014 11:31 PM

is this a shell and would it be classed as a fossil?

I found this about 15 years ago in the farmers field in my area (new addington, croydon). It looks like it is merely a shell but there is no sea near us.

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  • I think it could be an Echinoid (fossil sea urchin.)  Even though there isn't sea where you live now, the sea would have been there millions of years ago.

     

     

     

    Someone has a youtube Chanel called 'Darwin's gift' and on one of his videos he finds ammonites inland, like you have (but you found a possible Echinoid) but the sea level has gone back since then.  He also fossil hunts in Cretaceous   chalk for various inland fossils.  Also there is a channel called 'black river fossils', which find miocene shark teeth inland.

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      • I don't think it is as old as 100myo-200myo, but I think it could be Paleocene, presuming it is the same age as the fossil shark teeth which can be found in Abbey wood (60myo)

         

         

         

         

        I am not sure it is an Echinoid, but the patterns on the top seem to look like Echinoid.  It may just be a rock, but I very much doubt it because of the patterns on the top.

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      • After having a second look I now think it could be a fossil coral (very common, but it still could be a sea urchin.)

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      • Hi again,

         

         

        After doing some research, I think it could be coral, but Echinoid is still a possobility.

         

         

        Here is all of the info I have researched, in two possobilitys- coral or Echinoid

         

         

         

        Echinoid

        Upper Paleocene (60myo)

        Don't know the rock formation

        Don't know the species

         

        Coral

        Upper Paleocene (60myo

        Don't know the possible species

        Don't know the rock formation

         

         

        I hope this is helpful, but sorry I can't make an accurate ID, maybe someone who knows a more accurate ID can help?

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  • This is a flint echinoid called Echinocorys sp. Flint formed in the upper chalk meaning that your specimen is around 70-90 million years old.

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  • Hi kennyd131

    Great find, it is a fossil sea urchin.

    I bet you keep them in future, lets see them when you find some more.

     

    Tabfish

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