Dino9876 Posted September 5, 2020 Share Posted September 5, 2020 Hello, I see these shark teeth from an auction. I don't know if they are fossilized or come from a recent animal. Unfortunately the photos are not very good. I still wonder what kind of shark these teeth could have come from. My first idea was Megamouth shark, but teeth of these are of course very rare. On the other hand, it might fit because the teeth are found on Japan's coast and Megamouth sharks are also found there (if there are recent species). Can you help me with the ID? I'm really not quite sure, I've never seen teeth like this before. Thank you and best regards from Germany. My collection of Uncommon extant shark teeth - Here My collection of interesting rare shark jaws - Here Link to comment Share on other sites More sharing options...
PrehistoricWonders Posted September 5, 2020 Share Posted September 5, 2020 They don’t look fossilized to me... still cool, just not fossils. 1 Link to comment Share on other sites More sharing options...
Huntonia Posted September 5, 2020 Share Posted September 5, 2020 These look modern to me as well. I can't help much with the ID but I would doubt that these are from a rare species. Being sold in a lot would indicate they likely come from a more common source. 1 Link to comment Share on other sites More sharing options...
Dino9876 Posted September 5, 2020 Author Share Posted September 5, 2020 1 minute ago, Huntonia said: These look modern to me as well. I can't help much with the ID but I would doubt that these are from a rare species. Being sold in a lot would indicate they likely come from a more common source. Yes I think the same. I just don't know any comparable species with such teeth. The seller also wrote that he did not know which shark the teeth were from. Maybe someone else knows what kind they could be. Thanks anyway for your answer My collection of Uncommon extant shark teeth - Here My collection of interesting rare shark jaws - Here Link to comment Share on other sites More sharing options...
Coco Posted September 5, 2020 Share Posted September 5, 2020 Hi, Certainly recent and a common genus. If someone can help you : @MarcoSr Coco 2 ---------------------- 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...
MarcoSr Posted September 5, 2020 Share Posted September 5, 2020 4 hours ago, Coco said: Hi, Certainly recent and a common genus. If someone can help you : @MarcoSr Coco The teeth are extant Carcharhinidae teeth. They look like symphyseal teeth. Carcharhinidae, depending on the species and whether upper or lower symphyseal teeth, can have serrated or unserrated symphyseal teeth. Definitely not Megamouth teeth. Below are two 7mm Carcharhinus brevipinna (Spinner Shark) symphyseal teeth for comparison. Marco Sr. 1 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
Dino9876 Posted September 5, 2020 Author Share Posted September 5, 2020 14 minutes ago, MarcoSr said: The teeth are extant Carcharhinidae teeth. They look like symphyseal teeth. Carcharhinidae, depending on the species and whether upper or lower symphyseal teeth, can have serrated or unserrated symphyseal teeth. Definitely not Megamouth teeth. Below are two 7mm Carcharhinus brevipinna (Spinner Shark) symphyseal teeth for comparison. Marco Sr. Thank you My collection of Uncommon extant shark teeth - Here My collection of interesting rare shark jaws - Here Link to comment Share on other sites More sharing options...
Boesse Posted September 5, 2020 Share Posted September 5, 2020 Agreed w/ Marco Sr. about these being carcharhinid teeth. 1 Link to comment Share on other sites More sharing options...
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