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Got in exchange for prep work


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I wasn't sure where to post this, but since this ammonite has just been added to my collection, I figured I could show it here. I recently agreed to do some more prep work for an English paleontologist in exchange for some hard-to-get British ammonites. I recieve them all in raw condition, so I get to prep them as well. The package arrived yesterday, so I got right down to it. There wasn't all that much to do on this one, so it got done pretty quickly. It's a Cadoceras sublaeve from Ashton Keynes in Wiltshire and has a diameter of 8.5 cm.

 

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That' s lovely, Roger! :wub: 

 

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Thanks, Tim. I've been wishing for one of that quality for years.

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:dinothumb:

Neat looking piece, looking forward to seeing more from this trade.

 

Tony

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Odd.. I've got a specimen of supposedly the same species, which I was rather disappointed to realize most of the shell was missing from it - stripped down to the sutures, so I have not valued it much. But it otherwise doesn't look quite like the same critter as yours, unless there is some variation in the species. I'll try to get a pic and put it up soon.

BTW Mine says 'Kellaways Bed, Wiltshire', is that the same location as yours?

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10 hours ago, ynot said:

:dinothumb:

Neat looking piece, looking forward to seeing more from this trade.

 

Tony

 

Thanks, Tony. I'll post them from time to time as I get them done.

 

42 minutes ago, Wrangellian said:

Odd.. I've got a specimen of supposedly the same species, which I was rather disappointed to realize most of the shell was missing from it - stripped down to the sutures, so I have not valued it much. But it otherwise doesn't look quite like the same critter as yours, unless there is some variation in the species. I'll try to get a pic and put it up soon.

BTW Mine says 'Kellaways Bed, Wiltshire', is that the same location as yours?

 

Mine also has hardly any shell left, with the exception of that on the inner whorls, but I'm still happy with it. That species is the most common Cadoceras that comes out of this formation, but there are a number of other less common species to be found. The Kellaway Beds encompass the whole of the Callovian age and the species vary depending on the zone they are found in. There are also very many sites in Wiltshire, so I couldn't say if yours is from the same location as mine.

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Always nice to get hard to find fossils.  Nice one.

 

RB

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Here's the next one. A Shirbuirnia trigonalis, the index fossil for the trigonalis subzone, laeviuscula zone in the lower Bajocian at Sherborne, Dorset, GB. It has a diameter of 9cm. and shows nicely on its calcite mold where the phragmocone ends and the body chamber begins. Part of the shell is preserved as well on the inner whorls and on the body chamber on the other side.

 

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:dinothumb::goodjob: Love the suters on this one!

Tony

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Here are some pics of my 'Cadoceras sublaeve'. It seems to have more/finer ribby than yours:

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10 hours ago, ynot said:

:dinothumb::goodjob: Love the suters on this one!

Tony

 

Me too. :) Nice colors as well.

 

7 hours ago, Wrangellian said:

Here are some pics of my 'Cadoceras sublaeve'. It seems to have more/finer ribby than yours:

 

 

Yes, that does appear to be one. Mine would also have originally had such ribs, but they were partially sanded away by the original owner. Bit of a pity, but it looks nice anyway

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How do you mean 'sanded away'? I see that the shell was mostly removed except for the inner whorls, as with mine, but yours also has coarse ribbing along the sides but not in the keel region. Mine has finer ribbing all the way around. Yours also looks 'fatter'. I'd say there is either quite some variation in the species or we are looking at 2 different species.

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56 minutes ago, Wrangellian said:

How do you mean 'sanded away'?

I meant exactly what I said. Can't say it any better than that. The species is variable. Yours is also smaller than mine and they get fatter as the whorls develop.

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OK, I thought yours looked pretty close in size to mine.

The previous owner actually sanded yours off, around the keel area, where it's dark and shiny? (I was ignoring the rough looking part.)

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I got a few smaller ones done today. The first 2 are pretty rare, so, even though they're not perfect, I'm glad to have the specimens.

 

Bradfordia costata from the Bajocian at Sherborne, Dorset.

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Poecilomorphus cycloides from the same site.

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A strongly calcitized Planammatoceras sp. from the Aalenian at Horn Park, Dorset.

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Two more done today. These ones took a bit more effort to get them out of the matrix, but all's well that ends well.

 

Sonninia (Euhoploceras) adicra with a belemnite phragmocone hanging on for dear life. 12.5cm. From the laeviuscula zone, lower Bajocian at a site near Sherborne, Dorset. This is just the phragmocone.

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A Normannites sp., the microconch to Stephanoceras sp., with one lappet intact. 6.5cm. From the humphresianum zone, Bajocian at another site near Sherborne.

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More nice eye candy!

Tony

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21 hours ago, ynot said:

More nice eye candy!

Tony

 

And here's the rest of it. I had the whole day available, so I've finished up my portion. He said he's in no hurry, but I should get down to doing the job for him soon. Sorry, but I'm not allowed to show them though.

 

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Euhoploceras sp.

 

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Sonninia sp.

 

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Dorsetensia sp.

 

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Sonninia sp.

 

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Oppelia sp.

 

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Chondroceras sp.

 

 

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  • 3 weeks later...

Some real beauties in this collection-ones we don't usually get to see. I'm sure anybody would appreciate getting these. Looks like you made out real well. Congratulations and thanks for posting, Roger.

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14 hours ago, Jeffrey P said:

Some real beauties in this collection-ones we don't usually get to see. I'm sure anybody would appreciate getting these. Looks like you made out real well. Congratulations and thanks for posting, Roger.

 

13 hours ago, Darktooth said:

Very beautiful ammo's!

 

Thanks guys. Glad you appreciate them. I certainly do :D

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Nice acquisitions, Roger. Your preparation has transformed them into some real stunners! 

 

Love this one.

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:wub:   :envy:

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