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Bone or wood - Request for Help With ID Please?


Cortinarius

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Hello! I wonder if anyone would be kind enough to look at this for me and help confirm it’s ID? 
 

I’m quite inexperienced and when I found this over the winter, I crammed as much info on ID-ing bone as I could and concluded it was wood / plant material. I find a lot of wood in this area, so that makes sense. 


It happened to be in the background of a photo I posted to Instagram, and someone said they’re sure it’s bone - so I thought I’d double check here. 
 

It’s from the Helmsdale, North of Scotland - Jurassic-aged Portgower Boulder Beds member (157.3 - 152.1 mya, Kimmeridgian). 
 

I’ve shown both sides, as some of it’s visible from that back of the rock too. There’s also a smaller piece of what looks to be the same sort of material on the other side too. 

(apologies I can’t seem to upload the photos in the order I intended - I hope they make sense) 

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Hi, i would also say it's plant material with sponge borings, but i'm not sure.

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"On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry)

"We only well see with the heart, the essential is invisible for the eyes."

 

In memory of Doren

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8 minutes ago, fifbrindacier said:

Hi, i would also say it's plant material with sponge borings, but i'm not sure.


Thank you so much for your thoughts - much appreciated!
 

That was how I was reading it too - the borings cover the whole surface of the rock, so aren’t part of the original texture of the included material. 

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