Euphemites blaneuanus Carboniferous sea Snail

Euphemites blaneuanus 
From the Carboniferous,Pennsylvanian.
Collected from Jacksboro county,Texas,U.S.A.
A small but very well detailed Gastropod,from the Colony creek shale,looking to all intents and purposes like a Goniatite
The outer shell displays some really nice striations!
Loose from clay matrix and measuring 12mm