Lower Ordovician Gastropod or Cephalopod?

[AJ58]

This fossil is not like the other Gastropods I find in this creek. The shell is more inline instead of going out to one side.Very few Cephalopods found in this creek.Lower Ordovician Northeast Arkansas creek gravel.Southeast boundary of the ozark uplift.Someone Please ID this fossil.Thank you.

[minnbuckeye]

If I found that here in Minnesota, I would say Liospira. Found this about an Arkansas gastropod unknown:

 

 Daniel Frew  

 

• 
• Location: Dover, Arkansas

Came across this one along Indian Creek in Pope County Arkansas today.

[Wrangellian]

I don't think there were any coiled cephs in the Lower Ordo, were there?

[FossilDAWG]

50 minutes ago, Wrangellian said:

I don't think there were any coiled cephs in the Lower Ordo, were there?

Several Lower Ordovician genera in the Tarphycerida had coiled shells.

 

Don

[Wrangellian]

I'll have to look that one up, thanks.

[FossilDAWG]

To be clear, though, I think the fossil in question is a gastropod.

 

Don