New Members MrMacLeod Posted March 13, 2021 New Members Share Posted March 13, 2021 Usually, in this area we can only find small shell fossils. But today I found a small screw like dotted fossil. This is an old volcanic area, and on a nearby mountain there are some dinosaur footprints, if that helps. I also have no idea if there is more beneath the rock or if it's just this. I don't want to break it for obvious reason. Any help would be greatly appreciated! 1 Link to comment Share on other sites More sharing options...
Coco Posted March 13, 2021 Share Posted March 13, 2021 Hi, Sea urchin spine. Coco 5 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
Ludwigia Posted March 13, 2021 Share Posted March 13, 2021 I agree with Coco. Echinoid spine. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
New Members MrMacLeod Posted March 14, 2021 Author New Members Share Posted March 14, 2021 Thanks for the replies! Do you reckon I should try to gently break the stone around it? Or leave it as it is? Link to comment Share on other sites More sharing options...
Thecosmilia Trichitoma Posted March 14, 2021 Share Posted March 14, 2021 16 minutes ago, MrMacLeod said: Thanks for the replies! Do you reckon I should try to gently break the stone around it? Or leave it as it is? It's your choice. However, the stone stabilizes it, and from my experience echinoid spines are very fragile. I also don't think that preparation will improve the piece very much, as it is already half exposed. It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt -Mark Twain Link to comment Share on other sites More sharing options...
IsaacTheFossilMan Posted March 14, 2021 Share Posted March 14, 2021 From my experience with echinoid spines, definitely don't break the stone around it, unless you want a jigsaw! ~ Isaac; www.isaactfm.com "Don't move! He can't see us if we don't move!" - Alan Grant Come to the spring that is The Fossil Forum, where the stream of warmth and knowledge never runs dry. Link to comment Share on other sites More sharing options...
Coco Posted March 14, 2021 Share Posted March 14, 2021 You can try to wet your stone a little to soften it and then you scratch ALL GENTLY, but be careful because I think I see a crack under the first tubercles. Do not tap because the vibrations will break the spine. Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
caterpillar Posted March 14, 2021 Share Posted March 14, 2021 A Cidaridae spine. You can clear all around with a needle and then leave it on the matrix 1 http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
Coco Posted March 14, 2021 Share Posted March 14, 2021 Yes, I forgot to say leave it on the gangue, it’s too fragile to remove it completely. Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
jpc Posted March 14, 2021 Share Posted March 14, 2021 1 hour ago, Coco said: Yes, I forgot to say leave it on the gangue, it’s too fragile to remove it completely. Coco "gangue" is the French word for matrix... the rock that the fossil is in. 1 1 Link to comment Share on other sites More sharing options...
Coco Posted March 14, 2021 Share Posted March 14, 2021 Oh yes JP, I have forgotten that ! Thanks ! Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
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