S. minutissima, from Deflandre, 1931
Genus Sexangularia Awerintzew, 1906
Diagnosis: test organic, sometimes with attached mineral particles; cross-section polygonal, mostly hexagonal. Nucleus vesicular.
Sexangularia minutissima (Penard, 1904) Awerintzew, 1906
Published: Oct. 21, 2016, last updated: May. 23, 2017