Helderberg Marine Fossil ID

[historianmichael]

I collected today in an exposure of the Helderberg Group in NY. The Helderberg Group is Lower Devonian, and rich in marine fossils. We found this in the mine and could not come up with any kind of ID. It is possibly part of a horned coral? Or a brachiopod? Please let me know your thoughts. I can also provide more photos if necessary, I tried to capture the different angles. It is an interesting thing.

 

[Mark Kmiecik]

From what I can see there may be a couple or more things going on, but this is not my area of expertise, so I'll let the others ID it.

[Jackson g]

I don't see a septal groove or growth lines, which are good indicators of horn coral. It could have eroded away, but I don't personally think it's a coral. More likley gastropod if it is a fossil, could just be rock.