Fossil from waynesboro?

[Miocene_Mason]

So I found myself in waynesboro, Pennsylvania one fine evening, and along a side walk I saw some rock outcrops that had been cut for the road and I saw a rock that caught my eye. I decided to take a look, and the rock looked large strange, white, and bumpy. I didn't take it though because I thought I may look a little strange caring a large slab of rock, plus it was behind some construction stuff, so I left it be. But however, I did also see this red slab that appears to be shale with some other types of rock around it. I don't know if it is still Gettysburg shale up there, I couldn't find a geological map for franklin county. There were lots of rock types in the cut. Anyway, this rocks got two lines, of concave and one convex which look to be something, and I hope I have not found another burrow as they seem to haunt me at every turn. If this is a fossil, it will be the first one found in waynesboro that I could find refrence to. Tell me what you guys think.

By the way the multitude of faint black diagonal lines are because of the window the light is shine through.

[EMP]

2 minutes ago, WhodamanHD said:

So I found myself in waynesboro, Pennsylvania one fine evening, and along a side walk I saw some rock outcrops that had been cut for the road and I saw a rock that caught my eye. I decided to take a look, and the rock looked large strange, white, and bumpy. I didn't take it though because I thought I may look a little strange caring a large slab of rock, plus it was behind some construction stuff, so I left it be. But however, I did also see this red slab that appears to be shale with some other types of rock around it. I don't know if it is still Gettysburg shale up there, I couldn't find a geological map for franklin county. There were lots of rock types in the cut. Anyway, this rocks got two lines, of concave and one convex which look to be something, and I hope I have not found another burrow as they seem to haunt me at every turn. If this is a fossil, it will be the first one found in waynesboro that I could find refrence to. Tell me what you guys think.

By the way the multitude of faint black diagonal lines are because of the window the light is shine through.

 

Yep looks like a burrow. Maybe from a worm, though I know arthropods can also create ones sort of like those.

[Fossildude19]

These look more like sedimentary structures, to me.  

[Miocene_Mason]

Hmmmm, I'll get it to some experts to see if they can tell. I now think it's the chewsville member of the waynesboro formation, early Cambrian.