Gastropod ID request

[anonaddict]

 

location: aarhus, denmark

found: loose beach rock

units: metric

date: 23/9/2024

notes: appears to contain bryozoan(?), at least one gastropod and either another gastropod, nautiloid or ammonite

 

img1 in situ

 

 

img2 front, nautiloid, gastropod or ammonite? and bryozoan

 

img3 back, unid gastropod and bryozoan

 

 

Most of all I'm curious to which degree these are IDable. 

 

I'll go through 1 by 1

 

first up the main culprit the unID spiral, I don't see any sutures (but also cant see the shell) or chambres so I'm leaning towards a gastropod of some sort but I have next to no experience with gastropods since they are very rare with this being only my 2nd or 3rd one ever. any advice for IDing is welcome

 

img4, x10

 

img5, x20 of center

 

next up is the other(?) gastropod

 

img6

 

 

img7, im unsure if the indentation is part of it or separate

 

 

lastly what im assuming is a bryozoan due to a previous find

 

img8 bryozoan

 

img9 bryozoan other side

 

 

as always any insights on the specimen, from the type of rock to species names, is much appreciated. I'd like to know if there is a way to make a more precise ID or the specimen is simply too damaged

[Ludwigia]

That last photo is definitely some kind of gastropod, but I couldn't even guess the genus, let alone the species, since the preservation is not the best.