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Ammonite in Pleistocene strata


Rory

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Attached is an ammonite from east runton in north norfolk, however i really dont know how it got there! I was under the impression that ammonites died out long before then, and east runton is late Pleistocene era. 

 

Any ideas? It was lodged on top of the pastonian strata, as if it had fallen from above, and is pretty well preserved so it cant have been washed up.

20170722_111620.jpg

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Possibly an erratic that was re-deposited by glacial processes (which scoured the original Cretaceous bedrock during the Quaternary ice ages)? 

Also i think this topic is in the wrong section. 

"In Africa, one can't help becoming caught up in the spine-chilling excitement of the hunt. Perhaps, it has something to do with a memory of a time gone by, when we were the prey, and our nights were filled with darkness..."

-Eternal Enemies: Lions And Hyenas

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It's called a remanie, in England it seems to be more common than other places for some reason, normally it occurs when a river erodes out a fossil and redeposits it.

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“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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Euhoplites and Hoplites are early Cretaceous ammonites reported to be common in the coastal cliffs of Norfolk (https://ukfossils.co.uk/2003/06/12/hunstanton/ and https://www.researchgate.net/publication/309878345_The_stratigraphy_of_the_Gault_Formation_Early_Cretaceous_Albian_in_East_Anglia_and_south-east_England ). Both have members with prominent branched ribbing like your specimen.

 

http://www.gaultammonite.co.uk/pages/Link_Pages/Ammonites_Link.htm is a pretty nice reference with detailed photos and diagnostic descriptions.

 

H. dentatus:

Hoplites_dentatus1.jpg

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If the sediments at East Runton are exclusively Pleistocene, then the above statements are all possibilities. It could also have been left there by human beings. In order to determine the identity of the ammonite, we would need a picture of the venter and aperture.

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Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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