Triassic fossils in need of ID

[Miocene_Mason]

So I went to look for an owner of a potential site, I did end up getting an address but no one was home, so I decided to go to a previously unfossiliferous site. With this Gettysburg shale, you look for glossy layers (for some reason these are the layers with fossils. At the major exposure there was none, but under/next to a dirt boat ramp there was about five inch long three inch high outcrop of good stone. Yes, I got some strange looks poking at the ground with my trusty screw driver, but I got some small trinkets to show. I found these lines, most are different size and shape, one looks like the worm itself, although I feel I may be mistaken. Some hollow circles that look almost like crinoid columnals are present as well. This is most of what I found, tell me what you all think. I can take more pictures and provide more information.

Note: there may be some repeats, i was just trying to get every picture before sundown.

[ynot]

Look like borrow cast to Me.

[westcoast]

+1 for burrow.

[EMP]

52 minutes ago, WhodamanHD said:

So I went to look for an owner of a potential site, I did end up getting an address but no one was home, so I decided to go to a previously unfossiliferous site. With this Gettysburg shale, you look for glossy layers (for some reason these are the layers with fossils. At the major exposure there was none, but under/next to a dirt boat ramp there was about five inch long three inch high outcrop of good stone. Yes, I got some strange looks poking at the ground with my trusty screw driver, but I got some small trinkets to show. I found these lines, most are different size and shape, one looks like the worm itself, although I feel I may be mistaken. Some hollow circles that look almost like crinoid columnals are present as well. This is most of what I found, tell me what you all think. I can take more pictures and provide more information.

Note: there may be some repeats, i was just trying to get every picture before sundown.

 

Burrow casts, I think from worms is what they're referred to as. The "crinoid bits" are likely cross sections of burrows.

[Miocene_Mason]

1 minute ago, EMP said:

 

Burrow casts, I think from worms is what they're referred to as. The "crinoid bits" are likely cross sections of burrows.

 

31 minutes ago, ynot said:

Look like borrow cast to Me.

 

15 minutes ago, westcoast said:

+1 for burrow.

This was my thought as well, I wasn't sure though. Thanks for the confirmations!