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Gyroidina depressaeformis  Bykova, 1953)       

Class: Rotaliata  Subclass: Rotaliana  Order: Rotaliida  Family: Gavelinellidae
Taxon Profile

found near    Southern Siberian Mountains   Tajikistan   

Geological Time: Paleogene  Paleocene  


the drawings are published in the book cited below Mjatliuk

View of a specimen of Gyroidina depressaeformis Bykova, 1953)

width about 260µm

The identification is based upon:
Mjatliuk. E.V., 1953: Fossil foraminifera of the USSR. Spirillinidae, Rotalliidae, Epistominidae and Asterinidae. Book V.N.I.G.R.I. 11 271 pp. Plate 2-4, Fig. 6

                       



Citation:
Mjatliuk. E.V., 1953: Fossil foraminifera of the USSR. Spirillinidae, Rotalliidae, Epistominidae and Asterinidae. Book V.N.I.G.R.I. 11 271 pp. Plate 2-4, Fig. 6