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International Journal on Algae
SJR: 0.219 SNIP: 0.261 CiteScore™: 0.24

ISSN Print: 1521-9429
ISSN Online: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v18.i3.80
pages 287-300

The First Record of Bacillariophyta Imprintson Shells of Foraminifera Spiroplectammina Cushman (Lower Oligocene of Southern Ukraine)

A. P. Olshtynskaya
Institute of Geological Sciences, NAS of Ukraine, 55-B Olesya Gonchara Str., Kiev 01601, Ukraine
T.A. Stefanskaya
Oles Honchar Dnipropetrovsk National University, 72, Gagarin Av., Dnipropetrovsk 49010, Ukraine


Numerous imprints of valves and inner cores of diatoms were revealed by means of a scanning electron microscope on the shells of fossil agglutinating foraminifera Spiroplectammina from the Lower Oligocene deposits of Southern Ukraine. The taxonomic composition of Bacillariophyta, used by foraminifera to build their sceletons, is given. Representatives of at least ten genera were identified including Paralia Heib., Radialiplicata (Z.I. Glezer) Z.I. Glezer, Pseudopodosira A.P. Jouse, Trochosira Kitton, Actinoptychus Ehrenb., and Sceptroneis Ehrenb. We discuss a possible generic composition and ecological preferences of siliceous algae present in the surface layer of bottom sediments of the Maikop basin.