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Dawn Hopkins

Sharks teeth at the jersey shore beach?

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Dawn Hopkins

Are there a lot of cretaceous era sharks teeth along the beaches near Belmar? A friend said he found about 300 teeth over time there and I wondered if it was from older or newer sharks. Thank you! 

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Jeffrey P

They wouldn't be Cretaceous since there are no Cretaceous sediments exposed along the New Jersey shore south of Atlantic Highlands. 

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Dawn Hopkins

 Thank you, that is what I thought but wasn't sure if any of the rivers we look for teeth in dump into the ocean by Belmar.  

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The Jersey Devil

They’re most likely Pleistocene 

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hokietech96

I have found about 50+ shark teeth on the south jersey beaches over the past 3 years and they all have been modern teeth

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The Jersey Devil
2 hours ago, hokietech96 said:

I have found about 50+ shark teeth on the south jersey beaches over the past 3 years and they all have been modern teeth


That’s interesting. Do you have any pics?

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frankh8147

I would be curious to see some too! Here is a modern piece from the beach I had to pick up..

20200630_084347.jpg

 

 

20200630_084347.thumb.jpg.ec0b6cf5b92dc94cf77cec760a2af6f2.jpg

 

 

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hokietech96

IMG_E0736.thumb.JPG.86d7b8b2649a8b94c70285ae4dd198ab.JPG

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hokietech96

5efb38479e1e0_32EB779A-9D3E-436F-AC63-C8FDEF04B904(1).thumb.jpeg.9e743f4d7917f45a6301c8df88d3c641.jpeg32EB779A-9D3E-436F-AC63-C8FDEF04B904.thumb.jpeg.1b258f0589c89d2f707c576f6b7a06cc.jpeg

32EB779A-9D3E-436F-AC63-C8FDEF04B904 (3).jpeg

IMG_0739.JPG

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hokietech96

B5FC8E33-C612-4DC1-82B9-DA7E1F6EB86C.jpeg.886522d2a04196c66c055223c62a33f9.jpegFF922CA6-57D6-4C8B-9565-1CEDC44FD193.jpeg.257e153eeab3fc4d4ec2f0eb1f47e1a1.jpeg83A7D318-B869-4088-8C76-E9A720655BD4.jpeg.02511a8c21105e86e3811dff81d05620.jpeg

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hokietech96

 

8 hours ago, The Jersey Devil said:


That’s interesting. Do you have any pics?

@frankh8147

 

These are some of the better teeth I have found over the years at my place at the shore.  3 or 4 years ago they did a ton of beach restoration becasue of hurricane Sandy.  I think that has help with the South Jersey beaches being more productive with teeth.

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The Jersey Devil

@hokietech96 Those are fossil teeth. Really neat for a beach here

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hokietech96
2 minutes ago, The Jersey Devil said:

@hokietech96 Those are fossil teeth. Really neat for a beach here

Thanks.  I was misleading with my original statement.  I should have said modern sharks; meaning not extinct sharks.  The two white ones are not fossilized yet and that one bull shark tooth seems to be inbetween.

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The Jersey Devil
2 hours ago, frankh8147 said:

I would be curious to see some too! Here is a modern piece from the beach I had to pick up..

20200630_084347.jpg


Maybe a fish jaw? The spikes reminded me of a porcupine fish’s body spikes, but here there is jawbone so cant be that.

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frankh8147

Potentially! I just thought it was cool but never really looked into it.

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Fossildude19
3 hours ago, frankh8147 said:

I would be curious to see some too! Here is a modern piece from the beach I had to pick up..

20200630_084347.jpg  20200630_084347.thumb.jpg.ec0b6cf5b92dc94cf77cec760a2af6f2.jpg

Monkfish or Anglerfish?  IMAGES

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Plax

Shark river / Kirkwood lag teeth are found at the beach near Belmar. Only source I know of for the eocene shark Xiphodolamia. Elasmo.com has a good write up on this taxon.

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Plax
5 hours ago, hokietech96 said:

Thanks.  I was misleading with my original statement.  I should have said modern sharks; meaning not extinct sharks.  The two white ones are not fossilized yet and that one bull shark tooth seems to be inbetween.

they all look like fossils to me. Color doesn't matter that much.

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non-remanié

 

5 hours ago, Plax said:

they all look like fossils to me. Color doesn't matter that much.

 

Agree.  These look like a mix of Miocene and more recent Plio-Pleistocene.  There's been reports of Kirkwood fm beach teeth from elsewhere along the shore from dredging in recent years as well. 

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hokietech96
19 minutes ago, non-remanié said:

 

 

Agree.  These look like a mix of Miocene and more recent Plio-Pleistocene.  There's been reports of Kirkwood fm beach teeth from elsewhere along the shore from dredging in recent years as well. 

The beach I found them from was extended from dredging. It was so cool seeing them pipe it into the beach. What a process. They worked through the night 

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The Jersey Devil
21 minutes ago, non-remanié said:

 

 

Agree.  These look like a mix of Miocene and more recent Plio-Pleistocene.  There's been reports of Kirkwood fm beach teeth from elsewhere along the shore from dredging in recent years as well. 


How would you tell if they are a mix or either Miocene or plio-Pleistocene?

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Coco

Hi,

 

OK with Tim about recent anglerfish.

 

Coco

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