kindly consult this

Добрый день!

Советую Вам обратиться за консультацией к Пещевицкой Екатерине Борисовне из Новосибирска, которая является специалистом по диноцистам и другим палиноморфам нижнего мела

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С уважением,

Алина

Try Gedl,P.  Acta Geologica Polonica, Vol. 62 (2012), No. 3, pp. 439–461 on text figure 7 there is a specimen identified as Wanaea acollaris from the Bathonian of Poland. which shows some similarity to your specimens. Is there a chance of reworking? I have heard of records from the Cretaceous but have no illustrated records.

http://www.degruyter.com/dg/viewarticle.fullcontentlink:pdfeventlink/$002fj$002fagp.2012.62.issue-3$002fv10263-012-0025-8$002fv10263-012-0025-8.pdf?t:ac=j$002fagp.2012.62.issue-3$002fv10263-012-0025-8$002fv10263-012-0025-8.xml

Thanks, Stephen.

Hypocyst of Wanaea acollaris (and other species of Wanaea) is quite similar to hypocyst of my specimens, but epicyst of Wanaea should be relatively small and sligtly apically convex, as shown in Wollam, R. , J. micropalaeont., 1, July 1982 (p. 46) (see the attached picture).

My specimens have quite similar hypocyst and epicyst, that's why they are closer in my view to Mendicodinium genus. But the described species of Mendicodinium have no apical and antapical horns.

P.S. There is always a chance of reworking, in my mind)

I suppose it is possible that the specimens may represent a new genus! I doubt whether we have found everything yet! You may want to contact James Riding who has a compendious knowledge of Mesozoic dinocysts and will probably be able to advise you much better than I can.

 Hi Andrey, I don't recognise your bug but the Jurassic species Mendicodinium morgenrothii Butler 1995 may have both apical and antapical prominences.

Thanks, David.

Curiously, there is no mention of the prominences neither in diagnosis nor in description of this species. It's only visible in the photo of several specimens.