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Name:
Raphidonema sp.
Age: Cretaceous
Formation: Lower Greensand Formation
Location: Faringdon, Berkshire, England
Size: Sponge is 2 inches across
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Here is a very interesting fossil. This is Raphidonema sp., a fossil sponge, from the Cretaceous of England. Sponges are very rare in the fossil record. The spicules of a sponge are loosely held together by a soft, leathery integument. The sponge falls apart rather quickly upon death. Usually, only isolated spicules are found. This fossil sponge is cup-shaped and very 3-dimensionally preserved. This is a very intriguing example of a fossil sponge.
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