Coprolite or ...?

[African Girl]

I wonder what is it ? If coprolite or something else. Thank you for any help

[African Girl]

Another pics.Thank you in advance for help

[Tidgy's Dad]

I think that's an ammonite or nautiloid still stuck to a bit of matrix. 

Welcome to TFF from Africa. 

I lived in Poland for a year too. 

[GeschWhat]

32 minutes ago, Tidgy's Dad said:

I think that's an ammonite or nautiloid still stuck to a bit of matrix. 

Trying to see that. Are you talking about the ridge? If so, That is what makes me question whether this is a coprolite. The surface texture is interesting.  @Carl thoughts?

 

Welcome to the forum! 

 

[Tidgy's Dad]

Just now, GeschWhat said:

Trying to see that. Are you talking about the ridge? If so, That is what makes me question whether this is a coprolite. The surface texture is interesting.  @Carl thoughts?

 

Welcome to the forum! 

 

If the blue is where the ammonite is stuck to the matrix at the bottom, the yellow is the umbilicus and the green the chamber?

This image of the other side, also with umbilicus, looks very like a nautiloid :

 

[abyssunder]

Location of the find / geological settings and a comparative scale may be helpful in the ID.
I could see features of your specimen guiding me to microbial laminites with coprolites.

 

excerpt from A. Kochman & J. Matyszkiewicz. 2012. Microbial laminites with coprolites from Upper Jurassic carbonate buildups (Kraków–Czêstochowa Upland, Poland). Annales Societatis Geologorum Poloniae 82: 331–347

 

[Carl]

Hmmm... Not seeing enough there to confidently suspect coprolite.