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Dustink-

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I’m an avid arrowhead hunter and collector - came across this tooth in north east Oklahoma - any idea -I don’t think it’s shark as it’s to round and serrated . 

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Was following this thread on Facebook.  Thanks for posting it here - very curious to see where this ends up.  Based on the photos I presume it came from a river, so it could really have originated anywhere.  Was this the arkansas river? 

Edited by Styles
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Well my expertise is with Dinosaurs and I can assure you its not that.  So cannot help other than trying to figure out age

Triassic exposures are in the very northeastern corner so if it was found in the Arkansas River it good chance we can eliminate those deposits.  Given the preservation and size my guess its Permian in age. 

 

 

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@dinodigger

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I suggested posting it here because, well, it's a sea of experts. I agree that it isn't a dinosaur, nor a shark, as suggested. All I can suggest is maybe some early archosaur or even a synapsid. But the Permo-Triassic is loaded with many other excellent oddities that could claim this tooth. Very, very intriguing! I'll also alert colleagues who know EVERYTHING about the Permian and Triassic. Stand by.

Edited by Carl
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17 minutes ago, Dustink- said:

I think your rite - I’m leaning towards demetrodon tooth it looks very similar in size and shape

 

Not sure Dimetrodon teeth have those type of denticles.  The larger denticles include minor ones a more leaf type.. 

 

Screenshot_20221101_083054_Drive.thumb.jpg.16babc96d38f7a24888a5d363d98ea3c.jpg

 

If serrated, depending on species, the denticles would look like this.

Screenshot_20221101_083452_Drive.thumb.jpg.0f149511e92d7534e94a73c33cae6acb.jpg

 

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No,  the denticles in B are individual and all about the same size and shape.  The denticles in your specimen vary in size/shape with the larger ones having smaller denticles.  Very different.

 

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5 minutes ago, Dustink- said:

Figure b showing the serrations look exactly like mine , 

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The serrations on your tooth are actually much more complex than on a Dimetrodon tooth. 

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So any advice on how to identify what it belongs to , as I’m sure it was larger - missing the tip and base . Or what my next step should be 

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A bit of patience to give some other members time to see the tooth.  :fingerscrossed:

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The human mind has the ability to believe anything is true.  -  JJ

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Oh I completely understand people are busy I was just referring to the part where Carl and I were talking about the photos and differences , or in what direction I should be looking , Is all I meant 

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11 minutes ago, Dustink- said:

Oh I completely understand people are busy I was just referring to the part where Carl and I were talking about the photos and differences , or in what direction I should be looking , Is all I meant 

I can't think of anywhere to direct you at the moment. Might have to wait on my colleagues to direct. The one who focuses in the Permian said "Definitely not dinosaur and very hesitant to say Permian. My guess is way primitive lizard-oid Triassic." Still awaiting a response from my Triassic guy.

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Thank you btw , everyone for chiming in and trying to figure out what this tooth may be it’s much appreciated  

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If we're talking NE OK, then it's likely Permian/Carboniferous in age, as aforementioned (while transport from a different region is possible, it seems reasonable to first consider the fauna common in the Permian/Carboniferous). I don't see why it can't be "shark," in fact that's what first came to mind. My vote is an Orthacanthid cusp - I see a similar cross section and serrations on some of mine (can provide pictures later). 

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"Argumentation cannot suffice for the discovery of new work, since the subtlety of Nature is greater many times than the subtlety of argument." - Carl Sagan

"I was born not knowing and have had only a little time to change that here and there." - Richard Feynman

 

Collections: Hell Creek Microsite | Hell Creek/Lance | Dinosaurs | Sharks | SquamatesPost Oak Creek | North Sulphur RiverLee Creek | Aguja | Permian | Devonian | Triassic | Harding Sandstone

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2 hours ago, ThePhysicist said:

I don't see why it can't be "shark," in fact that's what first came to mind.

 

I've never seen anything like this, but my mind immediately went to shark tooth. The complex serrations are similar to serrations on some younger sharks.

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