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Bisphaera

Classification

    Phylum:  
Protista
    Subphylum:  
Sarcodina
    Class:  
Reticularea
    Subclass:  
Granuloreticulosia
    Order:  
Foraminiferida
    Suborder:  
Fusulinina
    Superfamily:  
Parathuramminacea
    Family:  
Parathuramminidae
    Formal Genus Name and Reference:  
Bisphaera BIRINA, 1948, *139, p. 159
    Type Species:  
B, malevkensis; OD


Images

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Fig. 226,1,2. *B. malevkensis, Dev., Bashkir, ASSR; 1, sectioned specimen; 2, reconstr., X 100 (*261).


Synonyms



Geographic Distribution

USSR(W, Urals, Russian Platform


Age Range

    Beginning Stage in Treatise Usage:  
Dev.
    Beginning International Stage:  
Lochkovian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
419
    Ending Stage in Treatise Usage:  
L.Carb.(L.Tournais.)
    Ending International Stage:  
Tournaisian
    Fraction Up In Ending Stage:  
33
    Ending Date:  
355.15


Description

Test comprising single chamber but with central constriction suggesting tendency toward double-chambered form; wall single layered, of tinely granular calcite, porous; no aperture observed.




References



Museum or Author Information