Vieira Posted April 26, 2017 Share Posted April 26, 2017 My entry for vertebrate. Ray plate found in 03/19/2017 and finished in 04/20/2017. Miocene - Burdigalian | Sesimbra - Portugal Before: After preparation: 2 Link to comment Share on other sites More sharing options...
Kane Posted April 26, 2017 Share Posted April 26, 2017 @Vieira You did a very good job on the prep of this plate. Bravo! ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Vieira Posted April 26, 2017 Share Posted April 26, 2017 24 minutes ago, Kane said: @Vieira You did a very good job on the prep of this plate. Bravo! Thanks Kane Link to comment Share on other sites More sharing options...
digit Posted April 27, 2017 Share Posted April 27, 2017 Nicest ray plate I've ever seen-huzzah! Cheers. -Ken Link to comment Share on other sites More sharing options...
ynot Posted April 27, 2017 Share Posted April 27, 2017 It is going to be a very hard choice this month, soooo many good entries!! Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Vieira Posted April 27, 2017 Share Posted April 27, 2017 8 hours ago, digit said: Nicest ray plate I've ever seen-huzzah! Cheers. -Ken Thanks for your words Ken Link to comment Share on other sites More sharing options...
JohnBrewer Posted April 27, 2017 Share Posted April 27, 2017 After looking at all the entries I'm a bit reluctant to enter but here goes! Found 17th August 2016. Prepped from Good Friday (14th April) to Saturday 22nd April. This is my first vertebrate prep. Location: Aust, Gloucestershire, UK. Triassic. Rhaetian Penarth series bone bed. Plesiosaur. Two partial vertebrae and an associated bone. 1 John Map of UK fossil sites Link to comment Share on other sites More sharing options...
JohnBrewer Posted April 27, 2017 Share Posted April 27, 2017 (edited) Edited April 27, 2017 by JohnBrewer file size 1 John Map of UK fossil sites Link to comment Share on other sites More sharing options...
JohnBrewer Posted April 27, 2017 Share Posted April 27, 2017 1 John Map of UK fossil sites Link to comment Share on other sites More sharing options...
JohnBrewer Posted April 27, 2017 Share Posted April 27, 2017 2 John Map of UK fossil sites Link to comment Share on other sites More sharing options...
Fossildude19 Posted April 27, 2017 Share Posted April 27, 2017 Neat find, John! 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Otodusobliquus Posted April 27, 2017 Share Posted April 27, 2017 I'm entering my first crocodile vertebra. I found it 4-14-17 along the Potomac river at an exposure of the Aquia formation. The layer here has lots of bones, but most are unidentifiable, so this made me pretty happy. Most of the bones here, including this one, have a lot of (limestone?) matrix stuck to them, and I haven't figured out how to remove it yet. 1 Link to comment Share on other sites More sharing options...
fifbrindacier Posted April 28, 2017 Share Posted April 28, 2017 Nice tooth @Vieira. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
fifbrindacier Posted April 28, 2017 Share Posted April 28, 2017 It's an awesome find @JohnBrewer. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
fifbrindacier Posted April 28, 2017 Share Posted April 28, 2017 Nice find @Otodusobliquus, it seams you also have ilprints of shells on it. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
fifbrindacier Posted April 28, 2017 Share Posted April 28, 2017 With all those nice entries, the choice will be hard to do ! "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
Max-fossils Posted April 28, 2017 Share Posted April 28, 2017 As previously said by many other members, many incredible finds have been made! Congrats to everyone on those spectacular finds. Now even though I'm about 90% that I'm not going to win the contest, here is my entry. Vertebrate: • Woolly rhino lower molar (m1 or m2) • Coelodonta antiquatis • Zandmotor, Netherlands • Pleistocene • Collected 15/04/2017 Note: the chewing surface is slightly damaged. Good luck to everyone else! Max 2 Max Derème "I feel an echo of the lightning each time I find a fossil. [...] That is why I am a hunter: to feel that bolt of lightning every day." - Mary Anning >< Remarkable Creatures, Tracy Chevalier Instagram: @world_of_fossils Link to comment Share on other sites More sharing options...
deutscheben Posted April 29, 2017 Share Posted April 29, 2017 I will throw my best find of the month into the mix too, a nearly complete chondrichthyan tooth from Illinois. Found: April 2nd, some very light prep done shortly thereafter. Location: Roadcut south of the Illinois River, LaSalle County, IL Age: Pennsylvanian, LaSalle Limestone of the Bond Formation ID: Cochliodus sp. 1 Link to comment Share on other sites More sharing options...
EMP Posted April 30, 2017 Share Posted April 30, 2017 On 4/27/2017 at 11:55 AM, Otodusobliquus said: I'm entering my first crocodile vertebra. I found it 4-14-17 along the Potomac river at an exposure of the Aquia formation. The layer here has lots of bones, but most are unidentifiable, so this made me pretty happy. Most of the bones here, including this one, have a lot of (limestone?) matrix stuck to them, and I haven't figured out how to remove it yet. Actually the substrate of the Aquia Formation tends to be glauconitic sand, or in some cases a type of marl (not limestone). Marl is a form of calcium carbonate, and should dissolve in diluted vinegar without affecting the calcium phosphate that makes up the bone. Link to comment Share on other sites More sharing options...
Otodusobliquus Posted April 30, 2017 Share Posted April 30, 2017 I've tried vinegar, it doesn't work. This piece soaked in undiluted vinegar for a week or so without any difference in the matrix. Link to comment Share on other sites More sharing options...
EMP Posted April 30, 2017 Share Posted April 30, 2017 1 hour ago, Otodusobliquus said: I've tried vinegar, it doesn't work. This piece soaked in undiluted vinegar for a week or so without any difference in the matrix. Then it isn't marl or limestone. My next best guess is just hardened sand (essentially sandstone), possibly with iron oxide/hydroxide acting as a sort of "glue" along with specks of calcium carbonate material from shells. It could also be calcium phosphate leached from the bone into the original substrate. 1 Link to comment Share on other sites More sharing options...
Otodusobliquus Posted April 30, 2017 Share Posted April 30, 2017 Any ideas on how to remove it? Link to comment Share on other sites More sharing options...
EMP Posted May 1, 2017 Share Posted May 1, 2017 2 hours ago, Otodusobliquus said: Any ideas on how to remove it? Maybe just try scratching it off with some prep tools, there can't be that much on it. Otherwise maybe try Iron Out or a similar product on a test sample of the same matrix and see what happens. If it's leached calcium carbonate phosphate then physical assertion is your only route of attack as far as I know. Link to comment Share on other sites More sharing options...
Darktooth Posted May 1, 2017 Share Posted May 1, 2017 Ok here is my entry for invertebrates. Hyolithid Hallotheca aclis Middle Devonian Found 4/26/17 Deep Springs Road. 1 I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
fifbrindacier Posted May 1, 2017 Share Posted May 1, 2017 On 6 avril 2017 at 8:59 PM, fifbrindacier said: Here is a coral i found on april monday the second in the department of Charentes-Maritimes in France on a kimmeridgian layer. According to my documentation it is, a priori, a Pseudocoenia hexaphyllia. The name of Pseudocoenia is, for some zoologists specialized on the corals, synonym of Stylina. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
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