Any ideas? I got none.

[Miocene_Mason]

Okay, so I did not create this with my hammer,scribe, or trusty screwdriver, it's on a different slab than the other one but this one also has some raindrops. It's Triassic Gettysburg formation from near emmitsburg, MD. It is a strange pointed mark almost as if something was pulled across it. Not all is preserved, I know this because it stops and then starts again (last pic). I'm stumped, let me know what you guys think.

[Fossildude19]

Plant material, I think. Not identifiable.

[westcoast]

I agree. Fragment of plant material.

[Rockwood]

The appearance of pyrite would be a positive indicator. 

[Carl]

I still think it looks more like a tool mark (not yours): where a chisel or some other piece of metal skipped across the rock.

[Fossildude19]

4 minutes ago, Carl said:

I think it looks more like a tool mark: where a chisel or some other piece of metal skipped across the rock.

 

I would normally agree with you Carl, ... but these red shales and mudstones/sandstones are very unforgiving of tool marks - they show up white, even after weathering.

I have seen many plant fragments in these rocks that look the similar.

 

[Carl]

Then I absolutely agree! Thanks, Tim.

[Miocene_Mason]

Yeah, it's not I took mark, it would have looked deeper and dustier. Also, I didn't do it and I found this site so no one as far as I know has collected there. The site may have had some work in the 1800's for other reasons than fossils, but the tool marks would be different. This piece appeared to have fallen off the outcrop naturally.

Another question, Is there a paper or a source of info for upper jurrasic plants, perhaps even plants of the Gettysburg formation?