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Showing results for tags 'sea sponge'.
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I have this huge round rock that's almost the size of a beach ball and weighs approximately 150-175 pounds. Can anyone tell me what the heck it is?
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Found this on sea shores in the Caribbean Appears to me as a fossil sea sponge, but not sure Any idea on what may be and how old ?
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Very large & irregular flint nodule, sea sponge or burrow system?
Thames Adventurer posted a topic in Fossil ID
Hi! I found this very large and irregularly shaped flint nodule on the Thames foreshore, London. To me, it kind of looks like the branching arms of a sea sponge, but I have heard that flint nodules also sometimes filled the shape of animal burrows and other things. It has a number of holes/handles in it. What do you think it is?- 9 replies
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I collected these off the Thames foreshore. I have been lead to believe that these are the remains of sea sponge (that they once held them, or were them??) but I don't really understand. Can someone here help confirm and explain this please? Thank you