Allosaurus Posted April 17, 2020 Share Posted April 17, 2020 While we all can agree that any fossil is amazing, fossils are even cooler under different wavelengths of light. So let's see your favorite fossils that flouresce under UV light! I'll start with a couple. Be sure to show the before and after. Saurornitholestes tooth, Two Medicine Fm, MT Link to comment Share on other sites More sharing options...
Allosaurus Posted April 17, 2020 Author Share Posted April 17, 2020 Carcharodon carcharias Baja, Mexico Last photo is poor quality, but it shows the cool phosphorescence of these guys. Link to comment Share on other sites More sharing options...
Allosaurus Posted April 17, 2020 Author Share Posted April 17, 2020 Megalodon Hawthorne Fm Link to comment Share on other sites More sharing options...
Allosaurus Posted April 17, 2020 Author Share Posted April 17, 2020 Crocodile tooth Two Medicine Fm, MT Link to comment Share on other sites More sharing options...
Huntonia Posted April 17, 2020 Share Posted April 17, 2020 I've shown it here on the forum before but this is a Dalmanited limulurus where a section of the pygidial spine was replaced with calcite. 2 Link to comment Share on other sites More sharing options...
snolly50 Posted April 17, 2020 Share Posted April 17, 2020 Two different Oreodonts, both with teeth strongly reacting to UV exposure. The first, when seen (under UV) with the naked eye emits a light yellow. The second, shows a pumpkin orange color that is much more pronounced than the image revels. The third image shows the first skull in daylight with the rich brown color the teeth normally display. 5 Human beings, who are almost unique in having the ability to learn from the experience of others, also are remarkable for their apparent disinclination to do so. - Douglas Adams, Last Chance to See Link to comment Share on other sites More sharing options...
PFOOLEY Posted April 17, 2020 Share Posted April 17, 2020 Prionocyclus hyatti... .... 5 "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
doushantuo Posted April 17, 2020 Share Posted April 17, 2020 nice! Link to comment Share on other sites More sharing options...
Harry Pristis Posted April 17, 2020 Share Posted April 17, 2020 For consideration: Agatized coral from the "silex beds" of Tampa Bay. Tampa Formation, about 25 Ma. 4 http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
Huntonia Posted April 17, 2020 Share Posted April 17, 2020 1 hour ago, snolly50 said: That is crazy! I didn't know oreodont teeth could glow under UV Link to comment Share on other sites More sharing options...
Misha Posted April 17, 2020 Share Posted April 17, 2020 3 hours ago, Huntonia said: I've shown it here on the forum before but this is a Dalmanited limulurus where a section of the pygidial spine was replaced with calcite. Are you sure that's replacement? The exoskeleton of the trilo is already made up of calcite but the rest does not light up. It may be repaired as I have seen UV fluorescence being used to detect repairs. Link to comment Share on other sites More sharing options...
Huntonia Posted April 17, 2020 Share Posted April 17, 2020 27 minutes ago, Misha said: Are you sure that's replacement? The exoskeleton of the trilo is already made up of calcite but the rest does not light up. It may be repaired as I have seen UV fluorescence being used to detect repairs. Hmm could be, when I first got it I assumed it was restoration but a member of the forum put the idea to me it could be calcite replacement. Here is a closer image showing just the tail without UV. It looks similar to calcite to me, however my eyes are not the best to trust as I'm colorblind. A similar but duller more muted color (again to my faulty eyes) and texture is actually present in other areas of the pygidial spine but don't fluoresce. My best guess has been that this is calcite or another similar compound and the concentration among other factors could lead only one spot to flouresce. The other spots are much smaller and not as deep, this section runs all the way through the spine. Basically, it wouldn't be the first time I was wrong about something and certainly won't be the last. Link to comment Share on other sites More sharing options...
FranzBernhard Posted April 17, 2020 Share Posted April 17, 2020 Some very nice examples, thanks for sharing! Copying it over from another topic: Franz Bernhard 2 Link to comment Share on other sites More sharing options...
Misha Posted April 17, 2020 Share Posted April 17, 2020 12 minutes ago, Huntonia said: Hmm could be, when I first got it I assumed it was restoration but a member of the forum put the idea to me it could be calcite replacement. Here is a closer image showing just the tail without UV. It looks similar to calcite to me, however my eyes are not the best to trust as I'm colorblind. A similar but duller more muted color (again to my faulty eyes) and texture is actually present in other areas of the pygidial spine but don't fluoresce. My best guess has been that this is calcite or another similar compound and the concentration among other factors could lead only one spot to flouresce. The other spots are much smaller and not as deep, this section runs all the way through the spine. Basically, it wouldn't be the first time I was wrong about something and certainly won't be the last. If it was a vein of calcite I would imagine that it would run through the fossil itself as well as the matrix like you see in this piece here: Maybe someone else will chime in with their opinion as even with the additional shot I cannot give you much more info on it. 1 Link to comment Share on other sites More sharing options...
Jackson g Posted April 17, 2020 Share Posted April 17, 2020 I've shared a picture on here somewhere, but I think the coolest piece I've come across to glow is the Tylosaurus tooth I found last December. 6 Link to comment Share on other sites More sharing options...
caterpillar Posted April 17, 2020 Share Posted April 17, 2020 Litoricola macrodactylus 5 http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
caterpillar Posted April 17, 2020 Share Posted April 17, 2020 Protadelomys 4 http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
Harry Pristis Posted April 17, 2020 Share Posted April 17, 2020 Another: 4 http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
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