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Symphyseal tiger shark tooth


Fin Lover

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Is this a symphyseal tiger shark tooth or something else?  I'm struggling to get good pictures, since it's only an 8 mm slant height, so hopefully these will do.

856899280_KIMG53592.thumb.JPG.008310e736d2004a41905ab2a8d65da0.JPG

1487514856_KIMG53662.thumb.JPG.d1a48af1aaf67408e950c10fbbe6cb2c.JPG

 

Compared to a posterior tiger:

1777983125_KIMG53572.thumb.JPG.243587f85938d2cd16e2c1c4c1c44315.JPG

 

Thank you!

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Fin Lover

image.png.e69a5608098eeb4cd7d1fc5feb4dad1e.png image.png.e6c66193c1b85b1b775526eb958f72df.png image.png.65903ff624a908a6c80f4d36d6ff8260.png

image.png.7cefa5ccc279142681efa4b7984dc6cb.png

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I did just find this old post. Similar to mine, but not exact. I did look at the symphyseals in the book I have by the Gale family and I don't think it's G. cuvier:

803928164_KIMG53672.thumb.JPG.8423cba72d9fbb8f272390e282224a4e.JPG

 

And not P. contortus:

1167000938_KIMG53682.thumb.JPG.1595bd004a01409440a23dfb85c58053.JPG

 

Fin Lover

image.png.e69a5608098eeb4cd7d1fc5feb4dad1e.png image.png.e6c66193c1b85b1b775526eb958f72df.png image.png.65903ff624a908a6c80f4d36d6ff8260.png

image.png.7cefa5ccc279142681efa4b7984dc6cb.png

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3 hours ago, Fin Lover said:

Is this a symphyseal tiger shark tooth or something else?


I think it is Galeocerdo, but I can’t tell if it is a symphyseal, pathological or broken tooth.

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Thank you!  It doesn't appear to me to be broken, but the serrations on one side are worn.

Fin Lover

image.png.e69a5608098eeb4cd7d1fc5feb4dad1e.png image.png.e6c66193c1b85b1b775526eb958f72df.png image.png.65903ff624a908a6c80f4d36d6ff8260.png

image.png.7cefa5ccc279142681efa4b7984dc6cb.png

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huh, it looks like the enamel is broken on one side of the main blade. The root still makes me think symphyseal, but the range of possible shapes if unbroken seems rather wide now.

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5 minutes ago, Fin Lover said:

I'm struggling to get a decent shot like that.  Does this work?

1274816440_KIMG55262.thumb.JPG.2ef3d0d8b998f9f925756e4c17794d10.JPG

This makes me think it's a broken posterior.

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Fossils? I dig it. :meg:

 

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I couldn't see the break before, but I just held it in much better light, and I do see it.  I'm guessing it should be like:

1516045939_KIMG55343.thumb.JPG.16b68b72d98d2b2d84a9d7fbf56dec8f.JPG

901910162_KIMG55342.thumb.JPG.4e276c3c4116abb629682e17c738c23f.JPG

 

Edited by Fin Lover
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Fin Lover

image.png.e69a5608098eeb4cd7d1fc5feb4dad1e.png image.png.e6c66193c1b85b1b775526eb958f72df.png image.png.65903ff624a908a6c80f4d36d6ff8260.png

image.png.7cefa5ccc279142681efa4b7984dc6cb.png

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