Ordovician trace fossil?

[Reklaw]

This is another piece from the Platteville formation in Beloit Wisconsin. Inside a gastropod shell there is a hexagonal pattern that sort of looks likes Paleodictyon, but I think this fossil formed in too shallow of water for Paleodictyon to occur, but I am not sure. Its on a 3" post-it note for scale. (There is also a nice Pterotheca to the left!)

[abyssunder]

I'm not sure what it might be, but in my mind could be something like a tabulate coral, maybe close to Pleurodictyum or similar.

 

(Paleodictyon - Pleurodictyum somehow similar names, but different taxa)

Edited July 2, 2019 by abyssunder

[Rockwood]

I don't think it's in farm country(not Paleodictyon). Looks like a second body fossil next to it, and the bedding contour is wrong (indicates a higher energy environment).

[Stingray]

Honeycomb coral trace possibly. I find lots of traces of those with the same symmetrical pattern. ( Favosites )

 

[Rockwood]

7 hours ago, Stingray said:

Honeycomb coral trace possibly. I find lots of traces of those with the same symmetrical pattern. ( Favosites )

 

True trace fossils from a tabulate coral would microscopic and exceedingly rare. In my opinion this is surely a body fossil.

[TqB]

Possibly something algal like Mastopora.