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A block with ammo


Ludwigia

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I went for a walk over the fields the other day since the farmers have been busy plowing things in or over. Well, I didn't find all that much, since I must have been a bit late. There were lots of footprints criss-crossing most of the familiar acreages, so I guess a good number of my colleagues got there before me. However, I did manage to come up with a promising block. I slugged it in two on the field and immediately noticed the tell-tale cross-section of an ammonite, so at least I had found something to play with at home. I didn't think to take a photo of the original pieces, since I had already glued them back together, started to whittle down the matrix and expose the shell before I decided to post a prep progression report here. Here's a pic of the stage it's at now, anyway. Still got lots to do.

 

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Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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8 hours ago, ynot said:

:popcorn::popcorn:

 

8 hours ago, Ptychodus04 said:

Can’t wait to see more... Your ammonites are amazing.

Well, I've just enjoyed a leisurely (I always wondered why you spell it with "ei", but speak in with "ee") sleep-in . Now first I have to get under the shower and then vacuum the house. Then I have about an hour for the workshop before lunch, whereafter I have to go shopping before the afternoon conference, after which I give my grandson his guitar lesson and get a free supper from my daughter. Sometimes I think I had less to do before I took up being a pensioner. I hope I can at least get another pic posted here before lunch. Probably won't get back to the ammo again until tomorrow afternoon.

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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I'm sure it will be worth the wait! 

“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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12 hours ago, WhodamanHD said:

I'm sure it will be worth the wait! 

Well, it's quite satisfying how much you can get done within an hour when the matrix is soft enough. I'd already noticed that there's a colony of tube worms on the shell, so I decided to move carefully with the stylus removing the excess matrix, that's why the second photo doesn't show much difference than the first. I Just reduced a bit more overburden before I turned to the abrader again.

 

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Then it was back to abrading to ascertain more precisely where everything was located.

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Now that I was a bit more confident about the position of things, I went back to the stylus and removed some more matrix.

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So that's the stage I'm at now. I'll probably get back to this tomorrow afternoon and continue with the abrader again, but right now it's time for lunch.

 

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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That’s gonna ok real nice, especially with those worm tubes!

“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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7 hours ago, Ptychodus04 said:

Looking good

 

7 hours ago, JarrodB said:

Very cool Roger.

 

7 hours ago, RJB said:

That beauty has some real promise. 

 

RB

 

18 minutes ago, WhodamanHD said:

That’s gonna ok real nice, especially with those worm tubes!

 

I was just as curious as you guys to see what was hidden under that matrix, so since I got home an hour earlier than expected, I managed to fit in 3/4 of it with some abrading.

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Now we're starting to get somewhere. Still got a ways to go though. Tomorrow I'd like to trim off some more matrix around the venter, reduce the size of the block somewhat and maybe also expose some of the back side of the ammonite. Not sure about that yet, but we'll see in what kind of a prepping mood I'll be finding myself tomorrow.

 

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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Some very nice ribs!  Im guessing that with that line along the outside of the fragmacone that the living chamber is not complete?  Either way, its dang nice man!!

 

RB

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43 minutes ago, RJB said:

Some very nice ribs!  Im guessing that with that line along the outside of the fragmacone that the living chamber is not complete?  Either way, its dang nice man!!

 

RB

You got it Ron. That line goes up to the end of what used to be the last section of the living chamber. Yup, it looks like it's going to be a nice once once it's done. I'm thinking that it's a Parkinsonia parkinsoni at this point, but I'll probably still check that out with a specialist later.

1 hour ago, ynot said:

Looking good as usual. You do such magic to those things.

Thanks Tony :)

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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Well, we're done now. First, as planned, I reduced the matrix in preparation for the final abrasion.

 

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And then I finished it off. There was no more need to ask the specialist. Now that it's well exposed, I'm confinent to say that it is indeed a Parkinsonia parkinsoni, the index fossil for the late Bajocian parkinsoni zone. It has a diameter of 6.5cm. I think the tube worms belong to the genus Mucroserpula sp. I think I made a mistake about the living chamber, though, since there appears to be a partial septal wall visible in the 4th photo below, which means that this is just part of the phragmocone and the original creature was much larger than this.

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  • I found this Informative 1

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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I knew it would turn out great! Nice work!

“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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Very nice thread. 

I love seeing how a small piece showing can lead to something this beautiful. 

Life's Good!

Tortoise Friend.

MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160-1.png.60b8b8c07f6fa194511f8b7cfb7cc190.png

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58 minutes ago, WhodamanHD said:

I knew it would turn out great! Nice work!

 

16 minutes ago, Ptychodus04 said:

:drool::drool::drool::envy: beautiful 

 

1 minute ago, Tidgy's Dad said:

Very nice thread. 

I love seeing how a small piece showing can lead to something this beautiful. 

Thanks, guys. This one has already found its place in the display cabinet.

 

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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