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Susieblue

Neogene Newbie
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Posts: 3
Reply with quote  #1 
Hi. I found this on the beach at Lyme Regis and would love to identify it. It’s 8cm long and the diameter of the hollow part is 3.5cm. It it heavy and stone-like but looks like the structure of bone. Thank you for any help.

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Chalkers

Cambrian Rockhound
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Posts: 43
Reply with quote  #2 
Not bone I'm afraid. It's flint from the Cretaceous Chalk that can be found further along the coastline. The hollow tube-like appearance is caused by a sponge fossil - sometimes the preservation of these can be really nice but the flint has been rolled around on the beach and the delicate fossil material inside has been weathered/eroded away leaving behind a hollow. It is sometimes worth cracking such flints open (with safety goggles on - the flint can splinter badly) to expose the delicate and intricate sponge fossils contained within.
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prep01

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Cambrian Rockhound
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Reply with quote  #3 
This is either a sponge in flint or a flint infill of a crustacean burrow, 80 -85 million years old eroded from the chalk nearby.
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Colin Huller
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Susieblue

Neogene Newbie
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Posts: 3
Reply with quote  #4 
Thank you for sharing your knowledge. I am really pleased and interested to have found out what it is. What a great forum.
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Susieblue

Neogene Newbie
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Posts: 3
Reply with quote  #5 
Thank you so much for sharing your knowledge. I am really pleased and interested to have found out what it is. What a brilliant forum.
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