Interesting Jurassic coprolites

[Ossicle]

These two coprolites have the most visible and interesting bits to them of any I have found. I've been trying to work out what the bits are, and I think they're bits of fish, from the colour and size, but I'd value more opinions! 

 

They are from the Oxford Clay, Jurassic, Callovian, Peterborough Member, and the first has colours I associate with fish remains I've found on the site. I don't really understand the dark pattern on the back.

 

ETA: Sorry, I think this should have been posted in the coprolite sticky! 

 

Edited February 10, 2022 by Ossicle

[Ossicle]

This is the second, and it looks to me like there is a small bone jutting out, and possibly more bones/scales embedded.

 

Thank you for looking!