Shellseeker Posted June 15, 2019 Share Posted June 15, 2019 Picked this up yesterday. It is easy to get excited on a small package. Looks like G. aduncus symphyseal but is much wider than the ones I see on a google search. 3 2 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
ynot Posted June 15, 2019 Share Posted June 15, 2019 cool Tooth! Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Captcrunch227 Posted June 15, 2019 Share Posted June 15, 2019 I love symphyseal teeth. They don’t get the credit they deserve for being so awesome. Really nice tooth you picked up there! Link to comment Share on other sites More sharing options...
Al Dente Posted June 15, 2019 Share Posted June 15, 2019 5 hours ago, Shellseeker said: Looks like G. aduncus symphyseal but is much wider than the ones I see on a google search. If it’s too small for aduncas, I would suggest Galeocerdo cuvier. 2 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted June 15, 2019 Share Posted June 15, 2019 Nice acquisition! Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Gizmo Posted June 15, 2019 Share Posted June 15, 2019 Very nice, congrats! Link to comment Share on other sites More sharing options...
Fossil-Hound Posted June 15, 2019 Share Posted June 15, 2019 Very nice tooth and an uncommon one. Very nice. Do or do not. There is no try. - Yoda Link to comment Share on other sites More sharing options...
Shellseeker Posted June 15, 2019 Author Share Posted June 15, 2019 8 hours ago, Al Dente said: If it’s too small for aduncas, I would suggest Galeocerdo cuvier. Obviously, I love symphyseals and parasymphyseals because they are so rare. I have some others that I "think" are symphyseals like the one below. but I just don't know. There are a number of photos of Tiger Shark symphyseals in TFF threads but none seem conclusive. Could I request symphyseal (and parasymphyseal if different) photos of aduncus, concortus, cuvier, and mayumbensis (all tiger sharks in my hunting grounds) that TFF members can provide to clarify the differences. @MarcoSr, @siteseer, @Paleoc, @Northern Sharks, @cowsharks, @Auspex, etc. I will try to get a few examples from the net (likely incorrectly identified).... 3 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
Shellseeker Posted June 15, 2019 Author Share Posted June 15, 2019 2 hours ago, Shellseeker said: I will try to get a few examples from the net (likely incorrectly identified).... http://www.thefossilforum.com/index.php?/topic/20941-pathologic-id-possible-ray-barbs/ This is a very interesting thread for those who have not read it, trying to answer the question of whether this shark tooth is Meg or Tiger. After Paleoc showed some pictures to carry the day on Tiger symphyseal, the photos disappeared. How does that happen and can we avoid it in the future? I am interested because it looks somewhat like my Tiger symphyseal. Here are some photos on a google search for Tiger symphyseals: Aduncus: Here are some identified as Cuvier Very few Identified as Mayumbensis or contortus And this one Daryl put up there, and all I know is I ENVY the fossil hunter who found it!!! AND although not identified lower than Tiger, it looks a lot like mine.. although smaller... Just adding material to demonstrate the confusion and prime the discussion. How can we differentiate fossil tiger shark symphyseals? 2 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
siteseer Posted June 18, 2019 Share Posted June 18, 2019 Hi Jack, Last month, I was all over this topic of tiger symphyseals, studying some specimens for a friend while in Florida. What I learned is that even in the modern species, Galeocerdo cuvier, there is a range of shapes seen among them. They can be symmetrical or almost so and they can be asymmetrical with weird serrations. So far I think I've seen just one tooth I would consider a symphyseal of G. mayumbensis. You should do a search of the forum and see what comes up. Jess 2 Link to comment Share on other sites More sharing options...
The Jersey Devil Posted June 18, 2019 Share Posted June 18, 2019 On 6/15/2019 at 1:43 PM, Shellseeker said: Obviously, I love symphyseals and parasymphyseals because they are so rare. I have some others that I "think" are symphyseals like the one below. but I just don't know. There are a number of photos of Tiger Shark symphyseals in TFF threads but none seem conclusive. Could I request symphyseal (and parasymphyseal if different) photos of aduncus, concortus, cuvier, and mayumbensis (all tiger sharks in my hunting grounds) that TFF members can provide to clarify the differences. @MarcoSr, @siteseer, @Paleoc, @Northern Sharks, @cowsharks, @Auspex, etc. I will try to get a few examples from the net (likely incorrectly identified).... That tooth is a pathological symphyseal tiger, it seems pretty robust and large in the pic, so probably G. cuvier over G. aduncus. “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal Link to comment Share on other sites More sharing options...
The Jersey Devil Posted June 18, 2019 Share Posted June 18, 2019 On 6/15/2019 at 4:04 PM, Shellseeker said: That tooth looks like an anterior G. mayumbensis “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal Link to comment Share on other sites More sharing options...
Shellseeker Posted June 18, 2019 Author Share Posted June 18, 2019 17 hours ago, siteseer said: You should do a search of the forum and see what comes up. Jess Will do Jess, time and weather are applying pressure. The "season" in SW Florida is rapidly being ended as a result of daily rains. I should get a chance this weekend. 9 hours ago, The Jersey Devil said: That tooth is a pathological symphyseal tiger, it seems pretty robust and large in the pic, so probably G. cuvier over G. aduncus. 9 hours ago, The Jersey Devil said: That tooth looks like an anterior G. mayumbensis Thanks for the identifications... I have in the past liked clarity, but it seems that this topic does not lend itself to clarity.... I can accept that... The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
The Jersey Devil Posted June 19, 2019 Share Posted June 19, 2019 3 hours ago, Shellseeker said: Thanks for the identifications... I have in the past liked clarity, but it seems that this topic does not lend itself to clarity.... I can accept that... Yeah, the deeper you analyze things, the lot less clear they become, as with anything. “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal Link to comment Share on other sites More sharing options...
Plantguy Posted June 20, 2019 Share Posted June 20, 2019 @shellseeker Hey Jack, like this thread alot!..You made me go scrounge thru some teeth and photos....so I was thinking #4 was a good bet and was wondering if #1 might be a symphyseal Tiger. I also noticed this little one being different as well.. a lower?---root is pretty much gone and was wondering what its position would be? Thanks for any/all help! Regards, Chris Link to comment Share on other sites More sharing options...
The Jersey Devil Posted June 20, 2019 Share Posted June 20, 2019 1 hour ago, Plantguy said: @shellseeker Hey Jack, like this thread alot!..You made me go scrounge thru some teeth and photos....so I was thinking #4 was a good bet and was wondering if #1 might be a symphyseal Tiger. I also noticed this little one being different as well.. a lower?---root is pretty much gone and was wondering what its position would be? Thanks for any/all help! Regards, Chris The first group is of anterior and lateral Galeocerdo teeth. #1 is cuvier, the rest mayumbensis. #4 is an anteriormost tooth. The single tooth is a Physogaleus. “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal Link to comment Share on other sites More sharing options...
Plantguy Posted June 20, 2019 Share Posted June 20, 2019 5 hours ago, The Jersey Devil said: The first group is of anterior and lateral Galeocerdo teeth. #1 is cuvier, the rest mayumbensis. #4 is an anteriormost tooth. The single tooth is a Physogaleus. Thank you! Regards, chris Link to comment Share on other sites More sharing options...
Shellseeker Posted June 25, 2019 Author Share Posted June 25, 2019 On 6/18/2019 at 6:48 PM, Shellseeker said: On 6/18/2019 at 1:13 AM, siteseer said: You should do a search of the forum and see what comes up. Jess Will do Jess, time and weather are applying pressure. The "season" in SW Florida is rapidly being ended as a result of daily rains. I should get a chance this weekend. @siteseer @Plantguy Went and looked and learned and grabbed a lot of photos... I'll focus on the teeth I tend to find in Florida and the ones that seem to have less confusion , first SANDTIGERS: Symphyseals on lower right for cuspidata & taurus HEMIPRISTIS: HEXANCHUS Symphyseal Notorynchus upper parasymphyseal Now we get into the really confusing areas, Tiger sharks... This is the tooth most frequently identified as an Aduncus symphyseal. It might be cuvier. These teeth (on the left) are more likely to be identified as Contortus symphyseals. Once again , they all might be cuvier. A few teeth have been identified as Mayumbensis symphyseals. Once again may be cuvier and finally Galeocerdo Cuvier... This last category clearly includes my original tooth for identification. It is a G. cuvier symphyseal. and I now know a lot more (but not enough) about tiger symphyseals. 2 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
siteseer Posted June 26, 2019 Share Posted June 26, 2019 Hi Jack, Yeah, a sand tiger or snaggletooth symphyseal is a very delicate tooth. They're so thin. It's tough to see them and tough to find a nice one. Jess Link to comment Share on other sites More sharing options...
Paleoc Posted August 22, 2019 Share Posted August 22, 2019 Again let me clarify this. Symphyseal teeth sit on the symphysis which is the center joint of the jaw. Hemipristis and Sand Tigers (Carcharias) do not have symphyseal teeth, they have parasymphyseal teeth which sit next to the symphysis. Tiger sharks, Carcharhinids, and Hexanchids have true symphyseal teeth. 6 Link to comment Share on other sites More sharing options...
Paleoc Posted August 22, 2019 Share Posted August 22, 2019 Tiger Shark sysmphyseals. These sit right on the center joint (symphysis) of the jaw. 4 Link to comment Share on other sites More sharing options...
Shellseeker Posted August 23, 2019 Author Share Posted August 23, 2019 23 hours ago, Paleoc said: Hemipristis and Sand Tigers (Carcharias) do not have symphyseal teeth, they have parasymphyseal teeth which sit next to the symphysis Thank you. I thought that I knew this , but then running across photos and pictures where Hemipristis and Sand Tigers (Carcharias) teeth were identified as symphyseal, I just did not have the courage of conviction to object to what I was seeing. A lot of incorrect statements out there.... The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
Amarykah Posted February 4 Share Posted February 4 I’m trying to identify a tooth I found yesterday. I believe it’s a symphyseal tiger but am looking for some confirmation. (Zolfo springs, peace river). Looks similar to one you posted above. I couldn’t figure out how to respond to a single image, so I’m adding the one I’m referring to on my post. and the one you posted: Mine is a symphyseal tiger, correct? Aaaaaaand….look what else I found!! It was a symphyseal kinda of day!! 3 Link to comment Share on other sites More sharing options...
Shellseeker Posted February 4 Author Share Posted February 4 37 minutes ago, Amarykah said: I’m trying to identify a tooth I found yesterday. I believe it’s a symphyseal tiger but am looking for some confirmation. (Zolfo springs, peace river). Looks similar to one you posted above. I couldn’t figure out how to respond to a single image, so I’m adding the one I’m referring to on my post. I ALMOST went out yesterday !!!! Fantastic (and unexpected) weather... RATS!!! Great finds.... The last one is a Megalodon (deserves a riker) .... and the 1st a Tiger... but we'll see what some real experts have to say. @Al Dente @The Jersey Devil @siteseer @sixgill pete 1 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
Al Dente Posted February 4 Share Posted February 4 51 minutes ago, Shellseeker said: Great finds.... The last one is a Megalodon (deserves a riker) .... and the 1st a Tiger I agree. 1 Link to comment Share on other sites More sharing options...
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