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Lugo

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Sonntag, 10. April 2016, 10:30

Preparation of a Reedops cephalotes hamlagdadianus Alberti, 1983.

Hi All,

after the magnificent preparation job of the spiny Koneprusia by Alex, i can show you a completely different story. This is the preparation story of a very solid and compact trilobite, Reedops cephalotes hamlagdadianus Alberti, 1983 from the Pragiaan of Foum Zguid.
The split of the rocks shows a very clean cross section of this trilobite and initially i had the impression that this would be an easy preparation job.

But it turned out to be completely different: the matrix seemed to be glued to the surface of the bug. Furthermore the exoskeleton is very poorly preserved and in some areas even small fragments of the surface come loose, together with the matrix.
There is also a big variation of color of the exoskeleton, ranging from black to almost yellow. Especially in the yellow areas it was difficult to distinct between scale and matrix and when removing the matrix, i had to rely on the expected curves of the trilobite's surface, hoping that i was only removing matrix. Sometimes it felt more that i was sculpting a trilobite, rather than prepping one.

After a painstaking preparation of almost two months, the bug is now ready.
This trilobites measures 7.0 cm.

Best regards

Luc
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Lugo

The Inner Circle

  • »Lugo« ist der Autor dieses Themas

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Sonntag, 10. April 2016, 10:32

the last series of pictures.
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Sonntag, 10. April 2016, 12:33

Hey Luc,

This one might not have spines but never the less this is a beauty.

Can imagine that it wasn't an easy prep. The coulor variation on this one is magnificent.
If you can sculpture a trilo like this, you're an artist.

Very well done.

Congrats.

paleo

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Sonntag, 10. April 2016, 14:52

Hey Luc,
very nice Reedops, thanks for sharing! I know the problems you describe, these look a lot easier to prep as they are. However, you did a great prep-job, it turned out a beauty! Congratulations!

Cheers, Alex

Jens

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Sonntag, 10. April 2016, 19:35

Hi Lugo,

nice work and as other preparators I know exactly what problems you had to face. Reedops is known to be difficult and so it's not a big surprise that you will not see many nice prepared specimens.
It's a bit easier when you can do some blasting in areas with bad separation or simply clean the surface to see what is shell and what matrix ;-)

Anyway, nice result,
all the best,
Jens
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Lugo

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Montag, 11. April 2016, 16:15

Thank you all for the nice comments.

Although this is not a spectacular specimen, it is indeed a somewhat unusual trilo, because of it's mix of colors.
I assume this is related to the fossilization conditions/ preservation of the find location ( Pragian of Foum Zguid ); the specimen from Atchana are all deep black.

Best regards

Luc
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