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VStergios

Planorbis freshwater gastropods?

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VStergios

Found this mortality plate in the thin compact layer between neogene conglomerates and marl, above the flysch, at Milia beach in Alonissos island, Greece.

According to a paper regarding the neogene in Alonissos [ http://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2019v41a3.pdf  ] findings from marl deposits in an abandoned lignite quarry near Votsi village include Planorbis freshwater gastropods. Have I also found planorbis gastropods? Am I looking at Miocene or Pliocene fossils? As always any suggestions are much appreciated!

IMG_0322s.jpg

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jpc

They look very much like Planorbis

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VStergios

@jpc Going to post more shots once I uncover more individuals from the plate surface. Very slow process involving frequent spraying with dissolved paraloid because they are very brittle, probably due to long term exposure to moisture.

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abyssunder

If the holding sediments are terrestrial, Planorbis / Planorbarius or similar could be countered, otherwise we could be on the wrong way.

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VStergios

@jpc @abyssunder  

Unfortunately there is little documentation about Alonissos and these gastropods are the only thing visible on the plate. This is my progress so far:

 

 

IMG_20200807_134722_1.jpg

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