What did I prep

[R0b]

I brought a piece of marl from my trip to France that had some interior bits sticking out. The location is Pointe du Chay (south of La Rochelle) and age Kimmeridgian - Jurrassic. 
Two of the pieces I prepped out this weekend (first successful attempt in doing so despite too much glue). The  tube like structure and what I first expected to be a bivalve from the outside but I don’t know any with a hexagonal pattern.

thanks in advance for your help

Edited January 3, 2022 by R0b

[val horn]

i guess that the first is a worm tunnel and the other a bryozoan  i expect more knowledgeable people will come by and give more information.

[Rockwood]

I don't claim to be more knowledgeable about this, but I have a feeling this is something different.

The shapes are familiar. The arrangement and time period are just strange though. 

[R0b]

 

17 minutes ago, Rockwood said:

I don't claim to be more knowledgeable about this, but I have a feeling this is something different.

The shapes are familiar. The arrangement and time period are just strange though. 

 
what are you considering?

Edited January 3, 2022 by R0b

[R0b]

1 hour ago, val horn said:

i guess that the first is a worm tunnel and the other a bryozoan  i expect more knowledgeable people will come by and give more information.

The worm tunnel has texture and the flat object seem to lack any pores / openings.

[Rockwood]

1 hour ago, R0b said:

 

 
what are you considering?

The hexagonal pattern is seen in Paleozoic corals and deep water trace fossils, but it seems out of place on a shell like this.

The tubes look kind of like worm tubes, but there is a plant like quality to them as well. I'm not sure what to make of it.

[R0b]

6 minutes ago, Rockwood said:

The hexagonal pattern is seen in Paleozoic corals and deep water trace fossils, but it seems out of place on a shell like this.

The tubes look kind of like worm tubes, but there is a plant like quality to them as well. I'm not sure what to make of it.

The site is rich in corrals probably a reef like environment so deep water can be ruled out at least. Could the “worm” be a Bryozoan?

[abyssunder]

I would guess there may be a tube worm and a Paleodictyon, but probably I'm wrong (at least about the latter).

Edited January 3, 2022 by abyssunder

[R0b]

Found this @Al Dente @FossilDAWG @MikeR what do you think?

indeed I don’t think it is Paleodyction

Edited January 3, 2022 by R0b

[Al Dente]

I’m not very familiar with Jurassic fossils. No idea on IDs for your fossils.

[R0b]

5 minutes ago, Al Dente said:

I’m not very familiar with Jurassic fossils. No idea on IDs for your fossils.

Thanks for looking into it.