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Sphenodiscus lenticularis ammonite and other shell fossils in a shale matrix


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Sphenodiscus lenticularis ammonite
From the late Cretaceous, Maastrichtian stage
Fox Hills Formation, South Dakota

 

I bought this at auction very cheap. The seller did not know what it was.

IMG_3631.jpg

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A beautiful ammonite! :wub::ammonite01:

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You certainly got a fantastic deal on that one! Did you get it as is, or did you do some improvement prepping on it?

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15 minutes ago, Ludwigia said:

You certainly got a fantastic deal on that one! Did you get it as is, or did you do some improvement prepping on it?

 

I did nothing to it. The auctioneer was in Illinois. 

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FranzBernhard

What a lovely specimen! Looks like a good deal ;).

Franz Bernhard

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Nice acquisition.

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Some wonderful specimens come out of the Fox Hills/Pierre Shale. I like that it's on matrix with those small bivalves and all around it.

The seller didn't know what it was - did you have fill in the ID/location data yourself, then?

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6 hours ago, Wrangellian said:

Some wonderful specimens come out of the Fox Hills/Pierre Shale. I like that it's on matrix with those small bivalves and all around it.

The seller didn't know what it was - did you have fill in the ID/location data yourself, then?

 Yes.

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Uncle Siphuncle

Having found many Sphenos in Texas, I must say that yours has quite the stately presentation!

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