Crinoid Stellarocrinus (?)

[JooJ]

I had no idea if it was a fossil at first (still might not be). The weight is not as you might expect from a rock (lighter) and the tail felt different from the rest. I found a prepared version and I thought they look very similar. Is that a crinoid fossil? I put upper cretaceous as a keyword but not sure, I just found it where I found other upper cretaceous marine fossils.  

[Al Dente]

It is a piece of breccia.

[KingSepron]

Geological

[Shamalama]

Agreed, this looks like a piece of Breccia rather than a fossil.

[digit]

Lacks the symmetry and pattern that a crinoid calyx would have. +1 for breccia.

 

https://en.wikipedia.org/wiki/Breccia

 

Cheers.

 

-Ken

[JooJ]

 Thank you! I thought it looked just like that cleaned crinoid (web picture) I am attaching a pic of . Especially that the weight of the piece is less than a rock "neck" of this rock is not feels bony. The neck feels and sounds different than the body and it is not that much fine-grained. I just added a few more pictures to look at. In all cases thank you for your feedback!    

 

 

 

[digit]

23 minutes ago, JooJ said:

 

 

Admittedly, that is one really disarticulated crinoid! Were it not for the larger plates in the lower right corner of the photo, I'd assume this was just crushed (brecciated) rock. The textural difference between the crinoid pieces and the background matrix are very pronounced on this specimen. Your item seems to be much more chalky without the solid shiny pieces in the disarticulated crinoid. Though I can see why you are considering mangled crinoid for your piece, I still believe it to be just a geological oddity.

 

Cheers.

 

-Ken