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JURASSIC OYSTER (Gryphaea dilatata) - 160 million years old - Peterborough

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JURASSIC OYSTER
 
160 million years old
 
Oxford Clay
Orton, Peterborough
Cambridgeshire
 

The extinct oyster Gryphaea dilatata, together with its cousin Gryphaea arcuata from the Lower Lias, are distinctive fossils, known in folklore as ‘Devils toenails’. They have one shell, or valve, much larger than the other and strongly curved as an adaptation to living on a muddy sea floor.


This is a good example of this fossil with both of the valves present. It was collected in the 1980s and is from an old collection.
  
See the also following book which can be purchased here (£6)  Formed Stones, Folklore and Fossils 
  
Click on a picture for a larger image


Size: 10 x 9 x 4 centimetres
Weight:  262 grams

PRICE: £12.00