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Showing results for tags 'staufenia staufensis'.
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I recently recieved a very interesting block with two ammonites of the same species to prepare on commission which I would like to show you here. They lay about 10 cm. apart one over the other, so either they were imbedded at different times or else they reached their final positions through turbulence. Staufenia staufensis is the species, one having a diameter of 18cm. and the other one of 16. They come from the Middle Jurassic bradfordensis zone of the Late Aalenian. I'll show you the progression of the preparation using 4 blocks of 4 photos each showing different perspectives of the block. The first thing I did was to rid the block of as much excess matrix as possible with hammer and chisel, but I didn't think to take photos of the original, so the first photos to be seen are the ones taken after that. Below is the state after a few hours of work with the styluses. It's starting to get into shape now. Then I spent the next few hours abrading and fine-tuning the shape with the styluses, rocking back and forth between the two as necessary. ...Looks like I'm going to have to make another post...
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- twin ammonites
- staufenia staufensis
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