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Lynvee
image.jpg  image.jpg  E7D6A597-9064-46F1-BA3E-934948E56FF3.jpeg 
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Dirty Pete
Looks like a flint nodule that formed within and took the shape of a Cretaceous chalk animal burrow.

Pete.
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prep01
Spot o!n Pete
Colin Huller
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Lynvee
B7CA51D9-FC25-43C8-8F22-24CEE0A1F07A.jpeg 
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Lynvee
I picked up these as well as they mimick hip and sacral joints .... so are you sure? As they don’t seem like a burrow shape.

[image1]

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Dirty Pete
Flint nodules can be any shape. As I understand it the nodules are formed by a complex chemical process where silica replaces chalk, molecule by molecule. In some cases burrows provided a preferential pathway for these reactions to occur. 

Pete
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Lynvee
Thank you... so in summary old odd shapes of Flint stone and coincidentally similar to hip sacral and tibia and rib shapes ... 
SO not a fossilised animal or similar 😅😬
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Lynvee
Ok - thanks
Is it common to be so similar to hip, tibia and rib articulations?
Thanks again
Lynn
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Dirty Pete
I'm sure there were a lot more nodules in the area that weren't bone shaped but you picked up and concentrated those that resembled bones.
Maybe it's a case of apophenia. 
Pete
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prep01
Hello and welcome to the forum. I once has a small flint that looked like a fish, it even had an eye in the right place, then someone posted a flint on here that looked exactly like a Scotty dog - tail and all!!!!! Flint can contain whole fossils though such as sea urchins, bivalves, brachiopods etc.Below is an article you might want to read. You will need to enlarge it to read it.

2014+Mortimore+on+Flint.jpg 
Colin Huller
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