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brym
We spent a very unproductive day at Mappleton yesterday. All I found was a shell bed containing several different bivalve species plus a small ammonite and belemnite. It's quite a nice display. I also found an echinoid which I think is Echinocorys. Then as usual my wife finds something which completely stumped me. I was a bit worried as there is a lot of man made stuff on that beach (I even saw one guy walking along with a large Gryphaea in one hand and a two foot bomb slung over his shoulder) but even so I can't think what it could be. I'd be grateful for any help.

Brian


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Hydrangea

Hi Brian  -  that's a piece of magnesian limestone, a natural rock that forms weird shapes and often looks man made.
Roy D.
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prep01
Hi Brym, at first I though 'man - made, but then I zoomed in to look at the 'matrix / fabric and it looks to be crystalline! The ornamentation, well I can't make up my mind about that either! Where's Harry (Tabfish ) when you need him (it's his 'local patch) and may have seen the likes before and know something I don't!
Colin Huller
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brym
Thank you both. I was worried that I was going to make a fool of myself and it was going to be something obviously man made.

Brian
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s.c.
Looks like very worn, crushed pentacrinites (or similar) crinoid to me. Which wouldn't be local but could it be an erratic? Or am I just seeing what I want to see?

Sam
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prep01
As Sam says it's likely to be an erratic, so my second duess is Stimaria, very battered!
Colin Huller
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I used to be a bit worried as there is lots of stuff on that seaside (I even saw one guy taking walks alongside a big Gryphaea in one hand and a -foot bomb slung over his shoulder) but even so I can't think what it could be. Academic Dissertation Writing Assistance @ Dissertation King I might be thankful for any help.
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s.c.
David Paula wrote:
I used to be a bit worried as there is lots of stuff on that seaside (I even saw one guy taking walks alongside a big Gryphaea in one hand and a -foot bomb slung over his shoulder) but even so I can't think what it could be. Academic Dissertation Writing Assistance @ Dissertation King I might be thankful for any help.


Anyone know how to report spammers?
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Hydrangea

Yes it is an erratic, probably from the Sunderland area.
I'm fairly sure it is a recrystallized magnesian limestone (Permian), which produces weird structures, often looking man made or like a coral fossil. This is one I found, same location :-

P1130210.jpg 

P1130211.jpg 

I hope you can see the similarity.
Roy D.
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s.c.
Interesting stuff Roy.  That would explain it.  I didn't know about this stuff.  That is some crazy limestone! I'd take it for a fossil at first glance too.  Learning... :-)

SAm
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brym
I'm pretty sure it's not a Crinoid, the only symmetry is bilateral. Roy's photo has convinced me it's limestone. When you see it in 3D it looks just like a mini vertebral column with ribs attached. Shame it's not.

Brian
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