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laiosx

Upper Miocene coprolite-like fossil ?

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laiosx

Theese are from Evia island Greece an Upper Miocene site with fossils. Any idea what can be the oblong ones ? The cones are freshwater gastropods that can be seen. there is also round and some arced ones. Some have  hole in the centre some not . The size also varies a lot from 1 cm to 10 cm

1.jpg

2.jpg

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Rockwood

@Carl and @GeschWhat should have a look at these.

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Carl

I guess some of the non-conical ones could be coprolites but I'd need to see more detail to be more confident. The high-spired gastropods that are encrusted could be covered in fresh-water algae and so it's possible, too, that the non conical ones are other things similarly coated. 

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Rockwood
52 minutes ago, Carl said:

similarly coated

As an indicator the presence of the coating seems to have the potential to be a double edged sword for and against them being coprolites ?  

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fifbrindacier

There exist a permanent post from @GeschWhat for this, you'll find it on the top of the fossil identification forum and you can clic on the window below to go directly to it :

 

 

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laiosx

Thanks for the response , I add some more photos cross section polished and not . The hole in the centre is usual feature but not always. Homocentric cycles also in many speciments , some resemble even stalactites. There are also round ones , somes seem to be hollow like small geodes.Texture is usual grainy but not always

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Edited by laiosx

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Carl

Definitely thinking not coprolite for the ones with that layered cross-section.

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Coco

Hi,

 

 

Escargot-Grece.jpg.6a8a8e62f4c267c85b24fd2c2c8b38d0.jpg

 

These ones look like recent land snails on limestone : Pomatias elegans.

 

Coco

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laiosx
6 hours ago, Coco said:

Hi,

 

 

Escargot-Grece.jpg.6a8a8e62f4c267c85b24fd2c2c8b38d0.jpg

 

These ones look like recent land snails on limestone : Pomatias elegans.

 

Coco

Thanks for the id , of the snail . Didn't know that species , and was wondering if it was a freshwater species

 

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laiosx
10 hours ago, laiosx said:

Thanks for the response , I add some more photos cross section polished and not . The hole in the centre is usual feature but not always. Homocentric cycles also in many speciments , some resemble even stalactites. There are also round ones , somes seem to be hollow like small geodes.Texture is usual grainy but not always

3434.jpg

fdf.jpg

fgfhfg.jpg

fdgg.jpg

ggg.jpg

bbfff.jpg

gggg.jpg

any other sugestion except coprolite ? plant material fossil , non biological formations ?

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westcoast

Oncoids?

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Rockwood
3 hours ago, westcoast said:

Oncoids?

Seems to explain the structure being more complex than the average travertine or tufa.

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laiosx
5 hours ago, westcoast said:

Oncoids?

Maybe , I think I saw that somewhere , thanks for the sugestion

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Carl

I agree that oncoids are a strong possibility.

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laiosx

A cross - section of the snail "nodules"  shows the layered feature

 

443.jpg

gfhfgf.jpg

Edited by laiosx

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Carl

AMAZING!!

 

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Plax

last pic reminds me of pagurized gastropods.

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Rockwood

Hey @Carl, 'spose oncoids grow on poop ?

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Carl
21 hours ago, Rockwood said:

Hey @Carl, 'spose oncoids grow on poop ?

Certainly possible. Just don't know enough about their habits and "tastes."

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laiosx

The core size should be quite small if that's the case . Perhaps about the size of a snail poop (??)

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