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Middle Devonian - scale pattern: fish? Plant? Coral?


Ivaldir

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Hey everyone,

 

Lately I found some pieces that appear to have a scale pattern. As I usually dwell coastlines for pleistocene fossils, this is out of my comfort zone. Somehow I hope the pieces I got out of the rock are not fish because I may have destroyed the fish then :) it's an old quarry and the matrix is very hard. Middle Devonian, Eifelizn-Givetian Ardennen regio of Belgium. I tried my best to take clear pictures with the digital microscope at work. Plant material? Fish? Bryozoan? Coral?

schubben6.jpg

schubben5.jpg

schubben4.jpg

schubben1.jpg

schubben3.jpg

IMG_20240826_222614769.jpg

Edited by Ivaldir
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Where?

    Tim    -  VETERAN SHALE SPLITTER

   VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png    VFOTM  --- APRIL - 2015       MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg        IPFOTM -- MAY - 2024   IPFOTM5.png.fb4f2a268e315c58c5980ed865b39e1f.png

_________________________________________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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Posted (edited)
4 minutes ago, Fossildude19 said:

Where?

Ow, forgot! Ardennen region of Belgium. I edited the post

Edited by Ivaldir
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It reminds me of imbricating echinoid plates but I can't make out any pore pairs yet.

Tarquin      image.png.b7b2dcb2ffdfe5c07423473150a7ac94.png  image.png.4828a96949a85749ee3c434f73975378.png  image.png.6354171cc9e762c1cfd2bf647445c36f.png  image.png.06d7471ec1c14daf7e161f6f50d5d717.png

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13 minutes ago, TqB said:

And a scale for size would be good. :)

Edited a photo with some scale in, best I can do for now but gives some idea

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Can we have a picture of the slice (cut), because calcite has so many different crystalline forms that I would not be surprised if it is mineral.

 


Coco

  • I found this Informative 1

----------------------
OUTIL POUR MESURER VOS FOSSILES : ici

Pareidolia : here

Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici
Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici
Mâchoires sélaciennes récentes : ici
Hétérodontiques et sélaciens : ici
Oeufs sélaciens récents : ici
Otolithes de poissons récents ! ici

Un Greg...

Badges-IPFOTH.jpg.f4a8635cda47a3cc506743a8aabce700.jpg Badges-MOTM.jpg.461001e1a9db5dc29ca1c07a041a1a86.jpg

 

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Cropped and contrasted:

 

IMG_20240826_222614769.jpg.1ffc704caf81795af08da85fa7dfa4e9.jpg

    Tim    -  VETERAN SHALE SPLITTER

   VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png    VFOTM  --- APRIL - 2015       MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg        IPFOTM -- MAY - 2024   IPFOTM5.png.fb4f2a268e315c58c5980ed865b39e1f.png

_________________________________________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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 As asked: pictures of the fracture, as well as another picture of the 'scale' which I made wet. Hopefully this helps!

 

1. Fracture wet zoomed

schubben14.thumb.jpg.67425f81f0807f5c7d11978a8118ec73.jpg

 

2. Fracture wet

schubben13.thumb.jpg.7ba7b22ce67c8bc5c29b7384235f22a5.jpg

 

3. Fracture dry

schubben12.jpg.8ff61c2a912bd81cc1b666ad228428db.jpg

 

4. Wet surface

schubben8.jpg.9c813f43e3988271f7ae87f4ba617ba1.jpg

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Thank you for the new photos. Unfortunately (or fortunately) it does not correspond to a flat calcite crystallization, on the slice I do not distinguish the scaleneohedral form of broken calcite.

 

So it’s still a mystery to me, I have no idea what it can be.

 

Coco

  • Thank You 1
  • I Agree 1

----------------------
OUTIL POUR MESURER VOS FOSSILES : ici

Pareidolia : here

Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici
Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici
Mâchoires sélaciennes récentes : ici
Hétérodontiques et sélaciens : ici
Oeufs sélaciens récents : ici
Otolithes de poissons récents ! ici

Un Greg...

Badges-IPFOTH.jpg.f4a8635cda47a3cc506743a8aabce700.jpg Badges-MOTM.jpg.461001e1a9db5dc29ca1c07a041a1a86.jpg

 

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This is fascinating. The internal structure revealed in the fracture in 'Photo 2 Fracture wet' is very curious and should be a good clue, however I don't have any good ideas. Hopefully somebody here will have seen it before... 

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I'm wondering if this is a bryozoan with lunaria at the apertures. There are possible autozooecial tubes, with pores in the middle of the crescents/lunaria.

 

schubben13.thumb.jpg.7ba7b22ce67c8bc5c29b7384235f22a5.jpeg.f60f9a81d45b3db5497919806e322922.jpeg

 

schubben8.jpg.9c813f43e3988271f7ae87f4ba617ba1.jpeg.a495e19f812f4ee87533e3f3bef8b70c.jpeg

  • I found this Informative 6

Tarquin      image.png.b7b2dcb2ffdfe5c07423473150a7ac94.png  image.png.4828a96949a85749ee3c434f73975378.png  image.png.6354171cc9e762c1cfd2bf647445c36f.png  image.png.06d7471ec1c14daf7e161f6f50d5d717.png

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@TqB thanks for looking into it! I can't really answer on it as I don't know anything about bryzoa. Any other knowledgeable people to tag on this topic?

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Thanks everyone, we'll keep it at bryzoa at the moment. If I ever come up with a species or something more detailed I'll post it here

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