Nautiloid in phosphatic nodule

[Samurai]

Location: Missouri

Period: Pennsylvanian

Formation: Iola Limestone (Muncie Creek Shale Member) (MO)

 

 

hello! this is my first nautiloid in a phosphatic nodule from this locality and unfortunately the split wasn't desirable, nevertheless you can see the inside beauty of this specimen

 

 

I know the genus Prouddenites have been found in these phosphatic nodules as the user Missourian happened to have a post from a couple years back showing his specimen

 

the only issue is with mine its harder to see what it is since the outer shell isn't that visible, any tips on identification or can anyone identify it from its internal portions? I can take more pictures if neccesary

 

 

 

 

Most detailed section:

 

 

 

 

 in the middle upper section of this piece had a bit of the shell shown from the underside 

 

 

 

Measurements:

 

 

when cracked the little middle section popped out, I was fortunate to find it

[Manticocerasman]

I spot a few more complex septa but it is hard to make out for sure, If this is the case it would be a goniatite.

 

[connorp]

Neat find. I've found a couple preserved similarly in phosphatic nodules from the Pennsylvanian of Illinois. They have been tough to ID as well.

[Samurai]

11 hours ago, Manticocerasman said:

I spot a few more complex septa but it is hard to make out for sure, If this is the case it would be a goniatite.

 

Thank you for the possible id I will try to get more focused images after work 

[Samurai]

16 hours ago, Manticocerasman said:

I spot a few more complex septa but it is hard to make out for sure, If this is the case it would be a goniatite.

 

Here are some more detailed/more lit up areas of the shell as promised

 

https://i.ibb.co/nsyq2RQ/20211117-200103.jpg

 

https://i.ibb.co/4pX4d2P/20211117-195849.jpg

 

 

other half:

 

 

[Manticocerasman]

 

I'm stil not completely sure since the septa might be dammaged but those that I highlighted tend to indicate it is a goniatite.

 

[Samurai]

5 hours ago, Manticocerasman said:

 

I'm stil not completely sure since the septa might be dammaged but those that I highlighted tend to indicate it is a goniatite.

 

Thank you for the ID I think you are right

Edited November 18, 2021 by Samurai