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Ray dermal denticle? Fish tooth??


Mahnmut

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Hello dear fellow forum members.

Among the things I found at a Dutch beach known for miocene (fish), pliocene and pleistocene terrestrial fossils was this nub I could not make head nor tail of.

@dries85 suggested from low res pics it could be a ray denticle.

Thats my best guess yet.

What do you think?

Thanks,

J

CIMG5028a.JPG

CIMG5029a.JPG

CIMG5030a.JPG

Try to learn something about everything and everything about something

Thomas Henry Huxley

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It is a Raja clavata denticle.

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Cool, thank you dries85 and Al dente !

J

Try to learn something about everything and everything about something

Thomas Henry Huxley

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4 hours ago, Al Dente said:

It is a Raja clavata denticle.

I'm not seeing this one. Hoping to learn a new trick here: do you have any refs to point to showing others like this?

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29 minutes ago, Carl said:

I'm not seeing this one. Hoping to learn a new trick here: do you have any refs to point to showing others like this?

 

Here's some more examples..

IMG_20241006_212711.thumb.jpg.89bfa9873f522af0e7fccc4b8408220b.jpg

 

And here's a well preserved one with the actual spine still attached..

IMG20240724224350.thumb.jpg.9cf5674140d878d10b4d9599265f401a.jpgIMG20240724224339.thumb.jpg.10fa39c172420513b4f5df2bae5daf6d.jpg

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4 hours ago, dries85 said:

 

Here's some more examples..

IMG_20241006_212711.thumb.jpg.89bfa9873f522af0e7fccc4b8408220b.jpg

 

And here's a well preserved one with the actual spine still attached..

IMG20240724224350.thumb.jpg.9cf5674140d878d10b4d9599265f401a.jpgIMG20240724224339.thumb.jpg.10fa39c172420513b4f5df2bae5daf6d.jpg

OUTSTANDING! Yep: learned something. Thanks so much for this.

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Ok, so the side looking like old tire was embedded in the skin, and the hole is where the spine was.

I imagined it the other way round. COol specimen.

Thanks again!

Try to learn something about everything and everything about something

Thomas Henry Huxley

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