Devonian Fossils?

[Saxon Vinkovic]

Hi everyone, havent posted here in a very long time. 

I have been out fossicking a few months ago in a region of New South Wales, Australia in a devonian limestone dominated region.

There are entire strata maade up of beds of Spirifer and Orthoceras and an array of corals, therefore its evident this used to be a shallow warm sea, of devonian age.

There is this one fossil however, with images (attached to the post) that appears to be a ring almost however it has to layer. I have used a ruler for scale

I'm unsure as to what this is and if it is even an animal. Any help would be greatly appreciated. 

Thanks for your time!  

[Lone Hunter]

Looks like part of an ammonite or something along those lines, someone familiar with that part of the world will give you better ID though 

[Manticocerasman]

It is a gastropod, the picture with the cross section is a good indicator.

 

[Kane]

I agree with gastropod. Uncannily, I encountered its smaller sibling in my Devonian rocks up here just a few days ago, and half a world away: 

[Tidgy's Dad]

It's a very nice find. 

The genus Orthoceras is limited to the Balto_Scandinavian area, your specimens may be another genus from the Order Orthocerida and can be referred to as orthoconic nautiloids. 

[Saxon Vinkovic]

Thank you so much everyone for your contributions.

I have taken it all on board and I can't thank you enought. I will continue to do a bit more research into devonian gastropods and contact a few locals. 

Thanks again!