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Richard
DSC05957.jpg 

This was found near Egton Bridge in Yorkshire in rocks of Toarcian to Bajocian age - probably Whitby Mudstone. 
 The marks seem very uniform for ripple marks but then again I have not seen any plant fossils like this. Any help with ID would be much appreciated.
Richard
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Elbert
Hello, did you find this in situ?
If not, it will be manmade. It does not look at all like Whitby mudstone or from any of the nodules known from these layers.

greets, Bert
the search is as valuable as the finds...
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Richard
Hello Bert
Yes it was found in situ. The rock on which the pattern sits is the same as the surrounding rocks. If it was man-made I would expect it to be different to the surrounding rocks. 
I am not certain it is Whitby Mudstone as there are three layers of rock on the geology map and I could not identify precisely the layer in which it was found. However the age is correct i.e. Toarcian to Bajocian. 
Richard
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Richard
Hello again Bert
Have had another look at the geology map. The rock could be Ravenscar Group including Moor Grit and Dogger Formation - if that helps!
Richard
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prep01
Pretty certain that's man - made.
Colin Huller
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