Hello, dear colleagues!
Help, please, determine palynomorph. These specimens are from Neogene Sakhalin. I could not find anything like this in literature. The size of the line on the photo is 50 microns.
P.S. Thank you all, who answer! ResearchGate suppose this question is very important for sciense community and therefore doesn't allow me to delete it)))
I agree that palynomorph on pictures is Quadrina.
Regards, Elena
looks like the acritarch Quadrina condita de Verteuil and Norris, 1992
this has a name in the Ordovician: Tetraniveum. Other people called it Coryphidium. Unknown biological affinities. It would be nice to compare our material! Best wishes, Thomas
As long as an organic-walled microfossil has no biological affinities it is an acritarch by definition (Evitt 1963)
I still think it is Neogene acritarch Quadrina condita de Verteuil and Norris, 1992.
Yes, I agree. And as we do not know what Quadrina is, it is an acritarch...
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