Cololites? Cecum? Coprolite?

[Ruger9a]

Hello again.  I have two fossils I've had labeled as coprolites and just found out they may be something else???  The smaller of the two (1st photos) is 20L x 7W x 15Hmm and was listed as "Turtle Poop" from Salmon Creek, Lewis County, Washington.  The second set of photos was listed as "Dino poo from Washington" and is 45L x 20W x 28Hmm with no specific location specified.  I'm thinking the 1st item very well may be Turtle Poo, but am unsure of the second item.  Looks like it "could be" a Cecum or Cololite.  Please let me know what you think.  Thanks. 

[Tidgy's Dad]

Hmmmmmmmmmmmm...............

This thread and the links within it may be useful.

http://www.thefossilforum.com/index.php?/topic/101241-siderite-or-turtle-coprolite/&tab=comments#comment-1124201

 

[sharkdoctor]

There's a great scholarly paper on these called: "The “coprolites” that aren't: The straight poop on specimens from the Miocene of southwestern Washington State"

 

The abstract is available here: https://www.tandfonline.com/doi/abs/10.1080/10420949309380097

 

 

[Ruger9a]

Was kinda hoping for input from The "Duchess of Dukie" concerning the 2nd larger fossil.