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Gazbaz77

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Reply with quote  #1 
Found a few of these on the Yorkshire coast amoungst other things. Just wondering if anyone can I'd it. I thought maybe an ammonite, but not sure as it's smooth in the centre part. Anyone ID it please?

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FossilPhil

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Reply with quote  #2 
Hi Gazbazz77,
Yes, this is a section of ammonite. The reason it is smooth in the centre is because the ammonite is fossilised within a nodule. The centre has thus been obscured by the rock growing around the central section of the fossil; the centre of the ammonite may be preserved inside the rock, albeit they are often crushed.
With regards to getting a species/genus identification, a keel photograph (side-on view) would be helpful.
Nice finds!
-Phil
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Gazbaz77

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Reply with quote  #3 
Quote:
Originally Posted by FossilPhil
Hi Gazbazz77,
Yes, this is a section of ammonite. The reason it is smooth in the centre is because the ammonite is fossilised within a nodule. The centre has thus been obscured by the rock growing around the central section of the fossil; the centre of the ammonite may be preserved inside the rock, albeit they are often crushed.
With regards to getting a species/genus identification, a keel photograph (side-on view) would be helpful.
Nice finds!
-Phil

Ahh tthank you. The one pictured in my hand looks like I'd probably destroy it if I attempt to remove the centre. But the one on the card behind looks like it might chip off so I'll give it a try. Here's the keel shot.

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Gazbaz77

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Reply with quote  #4 
Today's finds. I believe the bullet shaped one is a belemnite. The other tube shaped ones, i found about four of these, struggling to ID them. Some kind of coral maybe? And the pebble shaped one is a strange one. I thought it was a pebble with a fossil impression in it, but it has a little hole and looks too symmetrical to be a random impression left by something. And the little one looks like a tiny starfish. Any ideas?

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prep01

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Reply with quote  #5 
Hi , I think that pics 1 - 3 look like a vert warn echinoid (sea urchin), No4 is a single ossicle of or plate making uu a crinoid called Pentacrinites (also an echinoderm). 6 - 8 are all belemnitrs in various states of wear.
incidentally, in the first pic is that a shiny object attached - if it is, it might be the tooth of a fish called Lepidotes.
Anyone else got any views - I'm not an expert on NYC fossils!

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Gazbaz77

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Reply with quote  #6 
Quote:
Originally Posted by prep01
Hi , I think that pics 1 - 3 look like a vert warn echinoid (sea urchin), No4 is a single ossicle of or plate making uu a crinoid called Pentacrinites (also an echinoderm). 6 - 8 are all belemnitrs in various states of wear.
incidentally, in the first pic is that a shiny object attached - if it is, it might be the tooth of a fish called Lepidotes.
Anyone else got any views - I'm not an expert on NYC fossils!
thanks! Do you mean the first pic of the urchin?
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Vert Finder

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Reply with quote  #7 
Hi, I think pictures 1-3 are also of a belemnite, just a very worn one. The hole through the middle is where the belemnite phragmacone would go. This wouldn't originally have been a hole, just a cone-shaped indentation into the bottom of a belemnite shaft, however this specimen is so worn that the indentation has over time become a hole.
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TqB

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Reply with quote  #8 
Vert Finder is right, 1-3 is a worn belemnite. I agree with Colin for the rest of them.
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Gazbaz77

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Reply with quote  #9 
Thanks all!
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Gazbaz77

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Reply with quote  #10 
Back again, hope you don't mind but you all seem such a knowledgable bunch. So here's a few more things I found. There seems to be an abundance of these. I'm wondering if the smooth pebble like ones are the same as the larger one I'm holding but more weathered? Some kind if sea snail, I'm guessing?

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Gazbaz77

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Reply with quote  #11 
This one maybe a piece of some kind of large clam?

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Gazbaz77

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Reply with quote  #12 
I'm not sure what these are, look like some kind of sponge, very light. Probably just some beach related material. Any ideas?

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estwing

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Reply with quote  #13 
Hi Gazbaz
The first lot are Gryphaea, the so-called "Devil Toenails";
The second looks to me like a squashed ammonite partial;
As for the third, I'm not sure they're fossils, maybe just rocks in which certain molluscs may have bored holes (something like Lithophaga, maybe) - at least, the one on the right.
Cheers
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Hydrangea

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Reply with quote  #14 

Hi Gazbaz77 - I think the last ones may be furnace foam slag of some sort.

regards.

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Gazbaz77

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Reply with quote  #15 
Thanks again. [smile]
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