Coco Posted September 7, 2010 Share Posted September 7, 2010 Most of members of this forum are interested in fossil sharks. But it is sometimes useful to compare these fossils with the recent jaws for understanding the various teeth of every species and their positions in the jaw (see this thread) I propose to put here your recent jaws of selachians, to obtain a good range of existing species actually. I begin with the largest shark family, the Carcharhinidae. They are difficult to identify because these species are very numerous and a lot of them have same lower teeth... As I shall make my photos, I shall integrate the new ones into this initial subject in the order of families. CARCHARHINIDAE Carcharhinus acronotus - Blacknose shark Carcharhinus altimus - Bignose shark Carcharhinus brevipinna - Spinner shark Carcharhinus falciformis - Silky shark Carcharhinus limbatus - Blacktip shark Carcharhinus macloti - Hardnose shark Thanks for your interest Coco 3 1 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Paréidolie : [url=https://www.thefossilforum.com/topic/144611-pareidolia-explanations-and-examples/#comment-1520032]here[/url] 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...
siteseer Posted September 8, 2010 Share Posted September 8, 2010 Coco, Thanks for the photos. It is good to have modern reference specimens and photos of whatever you don't have. Some people will buy jaws just so they take the teeth out and glue them in order by quadrant on sheets especially when the jaws are damaged but the species is unusual. Having these references allows collectors to see for themselves the often subtle differences and variations from jaw position to jaw position. Your examples of Carcharhinus species are particularly helpful to collectors because each of them has a fossil record. Jaws of modern species without a known fossil record (as in the case of some deepwater forms) expose blank spots in our knowledge and show us what to keep an eye open for when collecting in sediments representing the same types of habitats of the descendants or relatives. Most of members of this forum are interested in fossil sharks. But it is sometimes useful to compare these fossils with the recent jaws for understanding the various teeth of every species and their positions in the jaw (see this thread http://www.thefossilforum.com/index.php/topic/10818-heterorodontie-of-selachians/page__p__123920__fromsearch__1#entry123920 ) I propose to put here your recent jaws of selachians, to obtain a good range of existing species actualy. I begin with the largest shark family, the Carcharhinidae. They are difficult to identify because these species are very numerous and a lot of them have same lower teeth... As I shall make my photos, I shall integrate the new ones into this initial subject in the order of families. Thanks for your interest Coco Link to comment Share on other sites More sharing options...
Scylla Posted September 8, 2010 Share Posted September 8, 2010 As always stunnig photos Coco, thanks for posting them. Link to comment Share on other sites More sharing options...
Coco Posted December 6, 2010 Author Share Posted December 6, 2010 (edited) CARCHARHINIDAE Carcharhinus melanopterus - Blacktip reef shark Carcharhinus obscurus - Dusky shark Carcharhinus plumbeus - Sandbar shark Coco Edited December 7, 2010 by Coco 1 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Paréidolie : [url=https://www.thefossilforum.com/topic/144611-pareidolia-explanations-and-examples/#comment-1520032]here[/url] 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...
Ordovician_Odyssey Posted December 6, 2010 Share Posted December 6, 2010 are these all yours!? there amazing.....i've alwase had a huge interest in marine biology.......where do you get them? -Shamus The Ordovician enthusiast. Link to comment Share on other sites More sharing options...
Paleoc Posted December 6, 2010 Share Posted December 6, 2010 (edited) I think your bull is actually a dusky. The lower teeth aren't right for a bull and the tooth count is off. Dusky's typically have 14 uppers per side (not counting symphyseals) while bulls have 12-13. http://www.elasmo.com/selachin/slides/dent/pics/c_leucas-dent.jpg Note the more massive lower teeth with arched roots Edited December 6, 2010 by Paleoc Link to comment Share on other sites More sharing options...
Coco Posted December 7, 2010 Author Share Posted December 7, 2010 Hi, Trilobite Guy, They are mine. I bought most of them for a very long time, on Eb-y. Someone are maybe badly identified because the salesmen did not know necessarily what they had, and when I verified their names, I had not all the tools which we have at our disposal today. I didn't verify the names for a long time. Thanks a lot Paleoc for your comment. You are right ! I corrected my posts... Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Paréidolie : [url=https://www.thefossilforum.com/topic/144611-pareidolia-explanations-and-examples/#comment-1520032]here[/url] 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...
Coco Posted December 7, 2010 Author Share Posted December 7, 2010 CARCHARHINIDAE Carcharhinus sorrah - Spot-tail shark A young one MALE Carcharhinus wheeleri - Blacktail reef shark Coco 1 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Paréidolie : [url=https://www.thefossilforum.com/topic/144611-pareidolia-explanations-and-examples/#comment-1520032]here[/url] 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...
RickNC Posted December 7, 2010 Share Posted December 7, 2010 I was checking out a decent set of mako jaws last night. Link to comment Share on other sites More sharing options...
Ordovician_Odyssey Posted December 7, 2010 Share Posted December 7, 2010 i love the jaw because its really cool to see just the jaws, because then you can see the huge differences between each species .........are the jaws pricy$$? -Shamus The Ordovician enthusiast. Link to comment Share on other sites More sharing options...
FossilForKids Posted December 7, 2010 Share Posted December 7, 2010 Here's a modern snag with 3 fossil hemis for scale If only my teeth are so prized a million years from now! Link to comment Share on other sites More sharing options...
alopias Posted December 7, 2010 Share Posted December 7, 2010 great collection Coco Link to comment Share on other sites More sharing options...
Coco Posted December 7, 2010 Author Share Posted December 7, 2010 RickNC : do you have any pics of mako ? Trilobite Guy : I am interested in recent selachian jaws to observe the multitude of sorts of teeth and their positions in a jaw. My more expensive jaw is a big Galeocerdo cuvieri (112,50 € = 149,21 US$) I have bought for a friend, but I done a mistake with the price. I thus kept it for me. My less expensive jaws are the ones I prep myself (most of them are rays). FossilForKids : your Hemipristis elongatus is nice. Do you have lower fossil teeth of Hemipristis ? (serra ?). Alopias : thanks. It is just the beginning Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Paréidolie : [url=https://www.thefossilforum.com/topic/144611-pareidolia-explanations-and-examples/#comment-1520032]here[/url] Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
FossilForKids Posted December 8, 2010 Share Posted December 8, 2010 RickNC : do you have any pics of mako ? Trilobite Guy : I am interested in recent selachian jaws to observe the multitude of sorts of teeth and their positions in a jaw. My more expensive jaw is a big Galeocerdo cuvieri (112,50 € = 149,21 US$) I have bought for a friend, but I done a mistake with the price. I thus kept it for me. My less expensive jaws are the ones I prep myself (most of them are rays). FossilForKids : your Hemipristis elongatus is nice. Do you have lower fossil teeth of Hemipristis ? (serra ?). Alopias : thanks. It is just the beginning Coco Here are your lowers If only my teeth are so prized a million years from now! Link to comment Share on other sites More sharing options...
Coco Posted December 10, 2010 Author Share Posted December 10, 2010 Hi, CARCHARHINIDAE Young Galeocerdo cuvieri - Tiger shark A big one Negaprion brevirostris - Lemon shark Coco 1 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Paréidolie : [url=https://www.thefossilforum.com/topic/144611-pareidolia-explanations-and-examples/#comment-1520032]here[/url] 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...
Coco Posted December 20, 2010 Author Share Posted December 20, 2010 Hi, CARCHARHINIDAE Prionace glauca - Blue shark Rhizoprionodon acutus - Milk shark Coco 1 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Paréidolie : [url=https://www.thefossilforum.com/topic/144611-pareidolia-explanations-and-examples/#comment-1520032]here[/url] 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...
RickNC Posted December 20, 2010 Share Posted December 20, 2010 RickNC : do you have any pics of mako ? Trilobite Guy : I am interested in recent selachian jaws to observe the multitude of sorts of teeth and their positions in a jaw. My more expensive jaw is a big Galeocerdo cuvieri (112,50 € = 149,21 US$) I have bought for a friend, but I done a mistake with the price. I thus kept it for me. My less expensive jaws are the ones I prep myself (most of them are rays). FossilForKids : your Hemipristis elongatus is nice. Do you have lower fossil teeth of Hemipristis ? (serra ?). Alopias : thanks. It is just the beginning Coco Skulls Unlimited has some available. I thought about buying one. I have a small set of tiger shark jaws I got somewhere years ago. Link to comment Share on other sites More sharing options...
Coco Posted December 21, 2010 Author Share Posted December 21, 2010 Do you have any pics of your tiger shark jaws ? I had a look on Skulls Illimited, it is written "We no longer accept shark jaws for cleaning"... Really, it is a special work to prep some selachian jaws. Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Paréidolie : [url=https://www.thefossilforum.com/topic/144611-pareidolia-explanations-and-examples/#comment-1520032]here[/url] 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...
Raff Posted December 21, 2010 Share Posted December 21, 2010 A very interesting post and fantastic photos! Link to comment Share on other sites More sharing options...
RickNC Posted December 21, 2010 Share Posted December 21, 2010 Do you have any pics of your tiger shark jaws ? I had a look on Skulls Illimited, it is written "We no longer accept shark jaws for cleaning"... Really, it is a special work to prep some selachian jaws. Coco Here is the selection at SU. Most of theirs are replicas. The natural bone mako's are at the bottom of the page. I can get a pic of my small tiger here sometime soon: http://www.skullsunlimited.com/products_by_class.php?id=7 Link to comment Share on other sites More sharing options...
Coco Posted January 2, 2011 Author Share Posted January 2, 2011 Hi, CARCHARHINIDAE Triaenodon obesus - Whitetip reef shark Coco 1 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Paréidolie : [url=https://www.thefossilforum.com/topic/144611-pareidolia-explanations-and-examples/#comment-1520032]here[/url] 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...
mormiston Posted August 13, 2013 Share Posted August 13, 2013 After looking at your photos, I think I am able to ID my mystery jaws as a silky shark! Shape is right, and count is right, not to mention those weird itty bitty center teeth! Thanks for the post! Link to comment Share on other sites More sharing options...
Sélacien34 Posted August 13, 2013 Share Posted August 13, 2013 (edited) Hello, some close up Lamnidae : Isurus Oxyrinchus (ampullae of Lorenzini are visible) Carcharinidae : Carcharhinus limbatus Edited August 13, 2013 by Sélacien34 Link to comment Share on other sites More sharing options...
Sélacien34 Posted August 13, 2013 Share Posted August 13, 2013 Carcharhinus plumbeus Link to comment Share on other sites More sharing options...
Brian Worley Posted August 28, 2014 Share Posted August 28, 2014 Nice !!! Link to comment Share on other sites More sharing options...
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