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It is actually a
septarian nodule, probably formed  in Liassics clays or shale. These are
diagenetic development, commencing their growth shortly after sediment burial.
They occur at certain specific horizons in the Lias.

The internal cavities are produced by crystal growth in the exterior expanding
the periphery. They sometimes contain fossils.  It is a nice specimen.

( The finder -  with the answer from Uni Southampton Dr I West )

THANKS A LOT to everybody.   Ueli Z

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As of late we have been
inundated with public emails requesting identification for items that have been
found. Due to the large number we're receiving lately we thought it best to
post the email/pictures on here and let all of you bring your knowledge &
expertise together to help us answer the questions we can't always get round

The contact of said email will be contacted to explain
where they can find this page to obtain the info, & to comment should they

Thank you all in advance for your help

From the UKGE team.


Dear Fossil Experts

May I ask you for your help please.

Having found a strange looking fossil I wonder if you
could help me to identify it?

It is from the Bristol Channel - Kilve area; about 20 cm
long and 16cm wide / 4 - 5 cm thick and weighs some 3 pound.

There were other similar ones around but broken ~ on/in
seriously heavy rocks.

The photos I took show clearly enough I

Thank you very much.

Best wishes







UK Fossils Forum Admin
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Dirty Pete
That looks suspiciously like a septarian nodule, a sedimentary concretion. The angular mineralised cracks give it away.
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Spot on, Pete
Anywhere for little ammonites, twice as far for big ones!
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I agree - not a fossil. Sorry

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