Megaspore or foraminifera?

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Saleh Lazam

Megaspore.....or alveolinidae

Huibert van den Brink

Thanks Saleh, I think it is a Cibicidoides.

Matthias Grimm

It appears to be organic matter. May be a Tasmanites or similar, see

https://www.palass.org/sites/default/files/media/publications/palaeontology/volume_8/vol8_part1_pp16-26.pdf

The cysts often break open and than looks very similar.

François Le Coze

Not a foraminifera.

Thank you all, in the same slide I found this beautiful foraminifera test lining.

Mohammed F. El Hassi

definitely it is not a foraminifera

Sudhir Shukla

Looks like a Foraminifera for sure

Reza Hanifzadah

probably non foraminifera?

Ilya Ryabov

looks like foraminifera, but its unrecognizable

this image looks like an organic lining of foraminifera, see

Article Foraminiferal organic linings: Functional and phylogenetic challenges

but this is not the same s the first picture.

Thank you, could this be Cibicidoides sp.?