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Jellyfish fossil?


Napoleon North

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Hi 

 

 

This is jellyfish fossil?

Age: Cretaceous , Campanian

Location: Southern Poland

IMG_0038.JPG

IMG_0040.JPG

IMG_0035.JPG

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Maybe a rudist?

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

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

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Maaaayyyybe. Most jellyfish fossils are nothing more than faint mineral stains or slight depressions/elevations in the rock, so it's not impossible. Better pictures would help, but my best guesses other than jellyfish are crinoid cross section, coral cross section, or a rudist. 

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6 hours ago, EMP said:

Maaaayyyybe. Most jellyfish fossils are nothing more than faint mineral stains or slight depressions/elevations in the rock, so it's not impossible. Better pictures would help, but my best guesses other than jellyfish are crinoid cross section, coral cross section, or a rudist. 

 

I highly doubt jellyfish. :unsure: 

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

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

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

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I can't tell what it is either, but I am quite certain that's not a jellyfish as I see hard parts on that fossil.

Looking forward to meeting my fellow Singaporean collectors! Do PM me if you are a Singaporean, or an overseas fossil-collector coming here for a holiday!

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It looks pretty close to this type of sponge:

 

IMG_0038.JPG.4aea1baadb7a21d9ea2830ecf6f5cce7.JPG.935fcfb86bb42513f64ab4dada24e5e1.JPG925876213Image6858-1.jpg.faa6b9ea88aa18b2b74fca6b5ee094e8.jpg

 

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" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

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I'm not saying it is jellyfish, just that mineral stains like that are how they are commonly preserved. Unless it isn't a mineral stain?

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8 hours ago, EMP said:

I'm not saying it is jellyfish, just that mineral stains like that are how they are commonly preserved. Unless it isn't a mineral stain?

 

I don't think it's a mineral stain - looks like shell-like material embedded in the rock. 

 

IMG_0038.JPG.4aea1baadb7a21d9ea2830ecf6f5cce7.JPG

 

Mineral stains are usually much more amorphous, ... and not so detailed.

It's also obviously quite worn.

@abyssunder's ID seems like a close possibility.

Regards,

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

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

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

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I could be wrong, but try to compare the patterns. Sponge embedded in matrix would be my thought. (Other comparable patterns?)

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

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