Archie Archie Posted June 5, 2021 Share Posted June 5, 2021 I found this yesterday on a fla beach. Appears to be fossilized dental plate from a ray. Can anyone help me verify the ID and estimate the age. Im guessing based on internet photos. 1 Link to comment Share on other sites More sharing options...
Al Dente Posted June 5, 2021 Share Posted June 5, 2021 It is from an eagle ray (Aetobatus). I think it’s modern. 2 Link to comment Share on other sites More sharing options...
Coco Posted June 5, 2021 Share Posted June 5, 2021 Aetobatus arcuatus. 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...
Archie Archie Posted June 6, 2021 Author Share Posted June 6, 2021 13 hours ago, Al Dente said: It is from an eagle ray (Aetobatus). I think it’s modern. Modern. Do you mean its not a fossil? Thnks for looking. Link to comment Share on other sites More sharing options...
Al Dente Posted June 6, 2021 Share Posted June 6, 2021 4 hours ago, Archie Archie said: Modern. Do you mean its not a fossil? Thnks for looking. I can’t tell if it is a fossil or not but the lighter color and near pristine condition makes me think it might be modern. A typical fossil ray or shark tooth found on the beach is usually well worn and dark colored but there are exceptions. I have seen some very nice fossil teeth from beaches but they are usually associated with beach dredging. Link to comment Share on other sites More sharing options...
digit Posted June 6, 2021 Share Posted June 6, 2021 15 hours ago, Coco said: Aetobatus arcuatus. Coco If it does prove to be modern then it would be Aetobatus narinari (the Spotted Eagle Ray). Being found on the beach opens the possibility of it being modern. If it were found inland away from a marine environment then that would pretty much rule out a modern tooth. You could try the flame test by passing the tooth briefly through the flame to see if it emits a nasty smell like burning hair. If so that would indicate some collagen still exists which would indicate a modern tooth. It is a very nice complete V-tooth from the lower tooth plate. https://biogeodb.stri.si.edu/caribbean/en/gallery/specie/263 Cheers. -Ken 1 Link to comment Share on other sites More sharing options...
Coco Posted June 6, 2021 Share Posted June 6, 2021 In any case, very well preserved ! 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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