Posible Orthoconic Cephalopod

#1
this is another fossil from the Traverse Group. its about 4in long and looks like the phragmacone of a straight shelled nautiloid, but the size and shape dont match Michelinoceras or Bactrited, the only Devonian orthocones recorded in this area. however, my resources are a bit dated and have been wrong before. has anyone seen any fossil cephalopods that resemble this one?

 

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