Pickle42 Posted April 5, 2014 Share Posted April 5, 2014 I have had this rock for a number of years and have often wondered whether it was an just oddly shaped or a fossil, if anyone would be able to help it would be very appreciated thank you Link to comment Share on other sites More sharing options...
Pickle42 Posted April 5, 2014 Author Share Posted April 5, 2014 Here is an image of the 'fossil' Link to comment Share on other sites More sharing options...
Lawdinfamous Posted April 5, 2014 Share Posted April 5, 2014 Im no expert by any means but I was thinking of a bivalve mollusk or some kind of gastropod. Link to comment Share on other sites More sharing options...
Kosmoceras Posted April 5, 2014 Share Posted April 5, 2014 The rock is flint. This was formed during the Cretaceous era in a chalk sea. Flint only formed in the upper chalk so I am confident to give it an age from 70 - 90 million years old. I am pretty sure you have a cross-section through an echinoid (sea urchin) called Echinocorys scutata. Could you send some more photos of a side-on view of the specimen to look out for confirmation (or exclusion) details? Many thanks, Thomas Link to comment Share on other sites More sharing options...
Herb Posted April 5, 2014 Share Posted April 5, 2014 I think Thomas has it. "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Pickle42 Posted April 5, 2014 Author Share Posted April 5, 2014 Thank you very much guys I was not expecting such a fats reply Link to comment Share on other sites More sharing options...
Pickle42 Posted April 5, 2014 Author Share Posted April 5, 2014 Is this quite a common fossil? I found it somewhere in England not sure exactly where though Link to comment Share on other sites More sharing options...
Taogan Posted April 5, 2014 Share Posted April 5, 2014 Urchins are fairly common along the South coast, in flint is rarer than in chalk, but not all that rare. Link to comment Share on other sites More sharing options...
Kosmoceras Posted April 5, 2014 Share Posted April 5, 2014 Echinocorys is a very common (and important) echinoid found throughout the White Chalk above the Terebratulina lata zone. Here is one of my specimens preserved in flint which is worn but shows the plates well. Best regards, Thomas Link to comment Share on other sites More sharing options...
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