This anything 2

[Rockwood]

Found in the fill of railroad bed. The nearest cut, a good match to the rock type and carbonate nodules found there, is mapped as the forks formation. This is Ludlow aged turbidite. I have reason to believe that this exact area was not included in the study though. The phyla list includes no corals, but I find them to be abundant.

Could be just some clay that got spread into the mix, but it sort of looks like some kind of life form or trace.

[ynot]

???

Could be a trace or weathering.

[Rockwood]

I've got plenty of shelf space for it.

Maybe on my next lunch break that good one will come into sight.