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fifbrindacier

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Hi everybody, Dimitris sent me some nice stuff and I'd like your opinion about them. 

A cretaceous ammonite, maybe protetragonites

IMG_20200920_201022.thumb.jpg.0e1f834b22e8285ec2fdc77fd58fc6f2.jpgIMG_20200920_200953.thumb.jpg.0bc16c448aebd3e47b4cfd5a0b4efd5f.jpg

 

An Oxfordo-callovian one

IMG_20200920_201213.thumb.jpg.22cb769f9d98833413e23eb34b4b4fc3.jpgIMG_20200920_201136.thumb.jpg.103e9d9e87c12617aba944b8832e1ba0.jpg

 

Rynchonellids from the Trias of the Nechinska bara river

IMG_20200920_200744.thumb.jpg.6d83ad46bc9615c5524b093ff9e07b47.jpgIMG_20200920_200649.thumb.jpg.8da2824f984572b6db8cbb426ff3be12.jpg

 

That rudist from the Maastritchian of Mont Ptoon, Grèce. 

IMG_20200920_200324.thumb.jpg.a275fe1cd6a12ad4d1ba155b95236db7.jpgIMG_20200920_200248.thumb.jpg.dbe863d188091e51b74833c9b4a29511.jpgIMG_20200920_200218.thumb.jpg.ea2fe0429d703934b58671987ae4fb15.jpg

 

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I agree it might be something else, i don't see the three "columns" that can usually be seen when seen in cross-section. But i have doubts.

AN_HippuritesHeritschi_16_klein_Text_kompr.jpg.b91555a600009034925d465cca281679.jpg

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Rhynchonellids are often a nightmare to id, but i think those are Jurassic Lacunosella. 

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24 minutes ago, fifbrindacier said:

I agree it might be something else, i don't see the three "columns" that can usually be seen when seen in cross-section. But i have doubts.

AN_HippuritesHeritschi_16_klein_Text_kompr.jpg.b91555a600009034925d465cca281679.jpg

Pictures 7,8,9 suggest rudist. I could bet on this. :)

(not pictures 3,4)

I think, I receive tooo late the updates, or I' m too slow.

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After talking to Dimitris about the ammonites i have rectifications to bring : they all come from the Zimevitsa plateau in Bulgaria and he said he collected them at the limit between Jurassic and Triassic layers. He hesitates between the Gintsi and the Radomir formations.

To me the first one looks like an Oppelid.

file:///C:/Users/acer/Downloads/Zimevitsa_GBGA_2014.pdf

http://www.bgd.bg/CONFERENCES/Geonauki_2014/Sbornik/pdf/26_Metodiev_GeoSci_2014.pdf

https://www.bgd.bg/CONFERENCES/Geonauki_2017/Sbornik/pdf/37_Metodiev_GeoSci_2017.pdf

http://www.bgd.bg/CONFERENCES/Geonauki_2015/Sbornik/pdf/48_Metodiev_GEOSCIENCES_2015.pdf

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