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Monica

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Hello there!

 

I was the lucky one who recently purchased "ammonite batch #3" from @RJB, and I was hoping to assign a name to the prettiest piece in the lot.  I think it is a Discoscaphites sp. - what do you think?  If so, there appears to be two common species belonging to this genus from the Fox Hills Formation in South Dakota (where this little guy was found) - D. conradi and D. gulosus (http://digitallibrary.amnh.org/handle/2246/815 and http://www.wmnh.com/wmima000.htm).  I'm leaning towards D. conradi but, really, I'm not sure.  Is there anyone out there who can help?  Please see picture below:

 

DSCN1965.thumb.JPG.f4d81032798d5854e7b710a721260cbe.JPG

 

Thanks in advance!

 

Monica

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Im purty sure its not gulosus.  those have another 2 rows of nubbies that i dont see here.  so yeah, maybe conradi?

 

RB

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I went and took a look at this gulosum.  Now im thinkin that it could be so?    These ammonites get very confusing to me.

 

RB

DSCN1043.JPG

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