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Pterygotus

Lavernock bone bed

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Pterygotus

This is being sold as a bone bed from Lavernock, Wales. It is labelled as possibly dinosaur. It is rhaetic triassic. Could it be dinosaur?

A8335F71-E0D0-4EA0-9ADD-764A14B1E488.jpeg

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Rockwood

The age shouldn't be a problem.

Identifying it from this photo is going to be though. I'm not sure there is anything diagnostic there.

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abyssunder

The bone measures 79.2 mm / 33 mm.

 

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fossil_sea_urchin

 

It looks like plesiosaur or ichthyosaur but it's quite thick, I find it unlikely that it's dinosaur.

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JohnBrewer

Maybe ichthyosaur coprolite?  Unusual to see it that colour as all the Triassic coprolite (fish) is black from there. I’ve not found icthyosaur coprolite there but it must exist. 

 

Coprolite maybe @GeschWhat @Carl?

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Carl
19 hours ago, JohnBrewer said:

Maybe ichthyosaur coprolite?  Unusual to see it that colour as all the Triassic coprolite (fish) is black from there. I’ve not found icthyosaur coprolite there but it must exist. 

 

Coprolite maybe @GeschWhat @Carl?

The grain definitely supports a bone ID. But I can see how it looks like a spiral coprolite. I think that's just an illusion caused by the parallel, transverse breaks.

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abyssunder

I agree. In that bone bed coprolites are present, but the specimen in question is a bone. Plesiosaur or Ichthyosaur might have a good entrance in this.

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