Trace fossils or water residue?

[Bonehunter]

So- been starting to look for my first conodonts in black shale in the Kansas City area and I commonly see what appears to be mineral deposits left when water seeps through layers, then dries, but these are in winterset limestone (as best I can tell) and while they look similar, maybe these are trace fossils? thanks for taking a look!   Bone

 

[connorp]

Looks like the ichnogenus Chondrites to me.