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I Need Help Determining % Of Repair On This Plate Of Russian Trilobites


hollywatertower

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Thanks to piranha, I believe these bugs are Asaphus Punctatus. Now I'm trying to determine the % of repair. I photographed them while under UV light. They look pretty good to me. Just guessing, I'd say about 5% (total guess). I'd greatly appreciate any opinions on the % of repair (or on any other matters)! The cystoid was definitely added to the plate. I'm a total novice when it comes to fossils. I bought a large collection and am learning as I go. Thanks in advance!!

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Thank you, for posting images of the "UV Test"! Such a test is occasionally discussed here, but images of the results are hard to come by. Many readers will now have a better understanding of the concept. :)

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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I hope some readers may find the UV light test beneficial; I never realized that you could black light fossils (until squalicorax recommended I try it). I've been doing it on old oil paintings and antiquities for years. I love the way it exposes all of the repairs!

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Very interesting. Do you think it indicates that the fossils were glued to the matrix rather than being exposed in it?

Some of the pictures seem to show a line running around the base of the fossil

It's hard to remember why you drained the swamp when your surrounded by alligators.

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Squali,

I know that the cystoid is added to the plate; whatever holds it to the matrix fluoresces. As to the trilobites, The fluorescent material was used to make repairs. The lines appear to be scratches (they are not fluorescent); there doesn't appear to be added material when looked at with a loop. This is all new to me. I have a ton to learn; and appreciate any and all opinions!!

Thanks,

Bill

Edited by hollywatertower
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