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Scrumpy

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Reply with quote  #1 
Picked this up because I could see an ammonite poking out, but once cleaned noticed the "nodule" covered in lines. Has anyone got an idea what this?
Cheers Rob

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TqB

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Reply with quote  #2 
Part of a Phylloceras I think.
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Elbert

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Reply with quote  #3 
Hello, the structure belongs most probably to a partial bodychamber of a large ammonite.
Phylloceras is indeed a possibility, but it could also be a very large Dactylioceratid; some cleaning and better pictures should make that visible.
Nice find! Could be a beauty when prepped!

greetings, Bert

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fossil man 72

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Reply with quote  #4 
have to go with tarquin on this , elbert what dactylioceratid would get that size [confused]
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Scrumpy

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Reply with quote  #5 
Hello and thanks for the replays .
Bert what would be the best way to clean it up? I have an air pen to try and perp the little ammonites, but not sure on how to tackle the rest of it.
Cheers Rob
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Elbert

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Reply with quote  #6 
Hello, before starting to clean it, it may be wise to make better pictures first.
In cleaning I think it would be wise not to touch the remnant of the bodychamber where in the other ammonites reside.
My remark on "a very large Dactylioceratid" was made because the structure of the shell of the bodychamber resembles an ammonite like a big Catacoeloceras or something like that.
I do not know what size they could grow to...
It looks a bit corse(?) for a Phylloceras.
There is a Lytoceras looking similar, but I do not know whether that one can also be found in the Toarcian.

greetings, Bert

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Scrumpy

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Reply with quote  #7 
Hello Bert,
Hope these pictures are a little bit more clear.
I've also took a couple of pictures of some other big fragments I picked up . Cloud you please ID these aswell Bert if you don't mind.
Cheers Rob

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Elbert

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Reply with quote  #8 
Hello, these pictures make it easier; Tarquin was right; it`s Phylloceras.
So first 4 pictures are your nodule, 5th is also a piece of Phylloceras heterophyllum, 6th and 7th looks like Harpoceras sp.
Here`s one of my Phyllocerasses: P1000013.JPG 

greetings, Bert


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Scrumpy

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Reply with quote  #9 
Hello Bert ,
It's nice to put a face to a name...
That is the biggest ammonite I think I've ever seen!!! I can only dream that one day I will find a monster like that, and once again big thanks for all the advice and IDs you have given me over the couple of years I've been a member of the forum.

Cheers Rob
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estwing

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Reply with quote  #10 
Hi Bert,
you wrote "Phyllocerasses", and I guess that would be correct applying the rules of English grammar.
Being the word Phylloceras latin, though, I wonder what the plural should be...
Phyllocera maybe (neuter)?
Any suggestions?

Great fossil, by the way
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Elbert

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Reply with quote  #11 
Hello, never having had the burden/pleasure of learning latin, wich I regret now, I would think Phyllocerea.
Phyllocerasses was just beeing creative, I did not mean to offend any Phyllocers with a backside...

greetings, Bert

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andy333

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Reply with quote  #12 
Phylloceratidae, from a paper I have. 
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