Ordovician - Kentucky fossil

[botaniccal]

So I debated even posting this, because I admit I did the absolute bare minimum (precisely one photograph). I used a significant portion of my battery life on this walk taking pictures so when I took this one my phone immediately died so I wasn't able to get more detailed pics. I also wasn't really thinking about this forum when I took these pics so apologies for that. I'm very very new to fossil hunting and ID. This was at the same place as my last post here (near Lexington, KY in the Oregon formation).

 

The rock was a smooth, cylinder shape. Part of the cylinder shape jutted out and you could trace the shape all the way around. It just seemed really out-of-place on the rock with how smooth it was and how it stuck out. It was covered in these weird squiggly things that you can see in the picture. My (very) uneducated guess is that this is some type of coral? But I don't know.

 

I understand if theres no ID that can be made because I did a poor job of documenting this, but even telling me if its a fossil or not would be helpful.

 

Near Lexington, Kentucky, Ordovician rock, Oregon formation, was about 8 inches across.

[Rockwood]

It looks like fossil burrows. Some sort of arthropod perhaps. 

[minnbuckeye]

59 minutes ago, botaniccal said:

weird squiggly things

Cross sections of gastropods.

[Fossildude19]

I agree with cross sections of gastropods for the squiggly things.

 

[botaniccal]

Thank you all for the identifications. I wish I could have gotten some more pictures because that odd cylinder shape was pretty impressive, though I have no clue what it was