OK Pennsylvanian Goniatite

[historianmichael]

I found this goniatite at an exposure of the Sausbee Formation (Early Pennsylvanian; Morrowian) in Oklahoma. I have tried in vain to identify it to even a genus level. I was wondering if anyone knew what this goniatite is. The only identifying mark that I could see on the fossil was a single band on the underside, as seen in the third photo. Any help would be greatly appreciated. Thank you so much!

 

[Jeffrey P]

I don't see any suture marks or ornamentation which would be necessary for ID. I found at Jacksboro what I think is an Eoasianites (It does have some suture marks preserved) which is a very similar shape as yours, but it could also be Glaphyrites or possibly others.

[BobWill]

The whorl profile, closed umbilicus and curved constrictions suggest Agathiceras sp. to me. However, the absence of either longitudinal lira or sutures places that ID in doubt.

 

[historianmichael]

Thank you @Jeffrey P and @BobWill! I have just identified it as a goniatite. There is no way to know more than that. I found a nice Eoasianites oblatus with well-preserved suture lines, so I was able to find at least one good goniatite at the site.