Astera Posted December 21, 2014 Share Posted December 21, 2014 Hello I found this "thing" years ago in the Kimmeridgian/Portlandian of Boulonnais (France) and re-discovered it when I sorted my fossils out. After some research, the closest correspondance in shape is camarasaurus teeth but I'm not sure. Could someone help me? Thanks in advance Astera Link to comment Share on other sites More sharing options...
Auspex Posted December 21, 2014 Share Posted December 21, 2014 Are you sure it's a tooth? I can't tell from the image that it has enamel. "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! Link to comment Share on other sites More sharing options...
Astera Posted December 21, 2014 Author Share Posted December 21, 2014 No I'm not sure... But the surface is smooth in comparaison with the inner side and the "root". My second tought was a fish scale: I've already found a scale without shiny enamel (same texture with the teeth) but the "root" thing disturbs me... Here fish scale with opaque (or no?) enamel in comparaison with shiny enamel: Link to comment Share on other sites More sharing options...
Auspex Posted December 21, 2014 Share Posted December 21, 2014 No I'm not sure... But the surface is smooth in comparaison with the inner side and the "root". My second tought was a fish scale: I've already found a scale without shiny enamel (same texture with the teeth) but the "root" thing disturbs me... Here fish scale with opaque (or no?) enamel in comparaison with shiny enamel: I believe this is a ganoid fish scale. "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! Link to comment Share on other sites More sharing options...
Coco Posted December 21, 2014 Share Posted December 21, 2014 Hi, Lepidotes scale. 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...
Astera Posted December 22, 2014 Author Share Posted December 22, 2014 Ok, thank you very much. I've never seen a scale like this, do you know if it's from near the tail or another special place? Astera Link to comment Share on other sites More sharing options...
Coco Posted December 22, 2014 Share Posted December 22, 2014 i don't know, but here is a drawing of the fish : http://www.google.fr/imgres?imgurl=http://www.prehistoric-wildlife.com/images/species/l/lepidotes.jpg&imgrefurl=http://www.prehistoric-wildlife.com/species/l/lepidotes.html&h=150&w=336&tbnid=CpQTCOHjInjbBM:&zoom=1&tbnh=89&tbnw=200&usg=__Of0VftRGfeSihIaQuhBe7bLEAmI=&docid=Y0x5U2uBa-sbdM&itg=1&hl=fr&sa=X&ei=_gSYVOCtD6LP7gaisoHQDg&ved=0CHoQ_B0wCg We found the same scales in the Purberckien of Cognac area. 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...
Astera Posted December 22, 2014 Author Share Posted December 22, 2014 I made some research about ganoid and Lepidotes scales. Even if it's probably a scale, I don't understand several things (in comparison with my others Lepidotes scales and publications): - the "articular tab" (don't know how to tell "onglet articulaire") is quite thick - in comparison with the rest of the "scale" - and does not seem to narrow (even if the end is broken) - special scales, meanning very pointy, like ones near fins have a more extended articular tab (like on the first picture, taken from Mémoire sur les Lepidotus maximus et Lepidotus palliatus, H.E SAUVAGE, Planche I; 1877) - the inner side of scales are either smooth and regular (for scales with very shiny enamel) or with a rhombus pattern (for scales with no articular tab and/or no shiny enamel, see the other picture). For these reasons, I allow myself to ask for more explanations. Could you, please, post a picture of the scales you found? Astera Link to comment Share on other sites More sharing options...
Auspex Posted December 22, 2014 Share Posted December 22, 2014 From the earthlife.net website: LINK "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! Link to comment Share on other sites More sharing options...
Coco Posted December 22, 2014 Share Posted December 22, 2014 I will try to do that between Christmas and new year because actualy I am very busy (a lot of RV with Santa Claus). If I forget, please don't hesitate to shout ! 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...
Astera Posted December 23, 2014 Author Share Posted December 23, 2014 Thanks a lot Link to comment Share on other sites More sharing options...
Coco Posted January 10, 2015 Share Posted January 10, 2015 Astera, I am very late, but here are my pics ! The second pic shows more real colours... I think I have more (with the roots of scales), but I don't know where they are... 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...
Astera Posted January 10, 2015 Author Share Posted January 10, 2015 Thank you Coco, better late than never =) Beautiful pix and scales by the way The one with the grey/pink root in the right box second picture remind me of two scales I've found in september. The color quite surprised me...Does someone know why they are colored this way? So it's definitely a scale. The shape may indicate it's one near the fin, though. Thanks everyone! Astera Link to comment Share on other sites More sharing options...
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