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deerhunter

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Reply with quote  #1 
These are the horseshoe crab trace fossils in the Gristhorpe member at Cloughton

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Dirty Pete

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Reply with quote  #2 
Very similar to the lunate markings at Westbury, here's some pics for anyone who's interested,
PA150002.jpg 

PA150004.jpg 
PA150005.jpg 
Finally a large sandstone slab covered in crab markings amongst other things
PA150001.jpg 
Pete.

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deerhunter

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Reply with quote  #3 
Are they middle jurassic like the ones in North Yorkshire?
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Dirty Pete

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Reply with quote  #4 
No they are Rhaetic (Upper Triassic), you might find this paper by Wang interesting. 

http://www.horseshoecrab.org/research/sites/default/files/G.Wang%201993.pdf


Pete.
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