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Home Latest Update :  3 Tuesday April 2012
Other Genus
OrderFORAMINIFERIDA
Sub OrderFUSULININA
Super FamilyPALAEOTEXTULARIACEA
FamilyBISERIAMMINIDAE
Sub FamilyBISERIAMMININAE
Genus BISERIAMMINA


BISERIAMMINA Chernysheva, 1941
 
 
Type species: Biseriammina uralica Chernysheva, 1941; OD.
Biseriammina Chernysheva, 1941 (*582), p. 69.
Test free, chambers biserially arranged, with planispirally enrolled axis of biseriality, so that the few subglobular chambers alternate from side to side as added; wall calcare­ous, microgranular; aperture a narrow interiomarginal slit against the previous chamber, in a nearly equatorial position and a short distance above the contact of the cham­ber with those of the preceding whorl. L. Carboniferous (Tournaisian); USSR: Ural Mountains; Bashkirian ASSR.
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