Unidentified found object

[Brevicollis]

Hello,

I found this "UFO" a few weeks ago while mushroom hunting.

Its embedded in maastrichtian aged flint, and has a diameter of 2cm.

I have absolutely zero clue what it could be, all those small stirae !
Maybe part of a solitary coral like Parasmilia sp., or a clam like Pinna ?
 

@rocket, @Ludwigia, @TqB and @anonaddict, have you guys any ideas ?
 

Thanks !

[ClearLake]

Neat looking!  Is it possible it represents a cast of the interior of a brachiopod?    The covering shell material has be eroded away.  That was my first impression.

[rocket]

unusual find, reminds me to a cheilostome Bryozoa. I have seen some in Flint looking a little bit similar, but only a little bit

How is the internal structure of the"shell" or whatever it is?

cool find!

[Brevicollis]

@rocket, may you please point out the area you want to know the structure of ?

I posted about this fossil also in the Steinkern Forum, but they only call it a "banded rock".

 

Edit, some guys there think it could be a spiney oyster like Spondylus.

Edited November 7 by Brevicollis

[Kohler Palaeontology]

Very interesting!! Reminds me of some trilobite heads I've found a little bit. I highly doubt it is that though.

[Brevicollis]

1 hour ago, Kohler Palaeontology said:

I highly doubt it is that though.

I can promise you it is not a Trilobite head, as they were extinct for almost 200 million years when this flint formed

[rocket]

@Brevicollis: banded chert was one of my first ideas, too

but the surronded area looks a bit like a structure of a fossil

 

[Kohler Palaeontology]

58 minutes ago, Brevicollis said:

I can promise you it is not a Trilobite head, as they were extinct for almost 200 million years when this flint formed

I was just saying that it resembles ones I've found, not actually one. Very interesting piece though.

[Brevicollis]

@rocket, the internal structure of this shell seem to consist of millions of little pillars really close to each other, if that helps.

[mighty micraster]

 

1 hour ago, Brevicollis said:

@rocket, the internal structure of this shell seem to consist of millions of little pillars really close to each other, if that helps.

 

I think that could be the remains of an inoceramid bivalve, they have a shell structure like you describe.