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Fabiania

Classification

    Phylum:  
Protista
    Subphylum:  
Sarcodina
    Class:  
Reticularea
    Subclass:  
Granuloreticulosia
    Order:  
Foraminiferida
    Suborder:  
Rotalina
    Superfamily:  
Orbitoidacea
    Family:  
Cymbaloporidae
    Formal Genus Name and Reference:  
Fabiania A. Silvestri, 1924, *1778, p. 7
    Type Species:  
Patella (Cymbiola) cassis OPPENHEIM, 1896, *1390, p. 55, 56, OD


Images

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Fossil Image
Fig. 574,3-5. *F. cassis (OPPENHEIM), Auvers., Italy (3), Lutet., Italy (4,5); 3, ext., X13; 4, horiz. sec., X24 (*1781); 5, tang. vert. sec., X12 (*1781). -- Fig. 574,6,7. F. cubensis (CUSHMAN & BERMUDEZ), Cuba; 6, horiz. sec. enlarged; 7, axial sec., X 41 (*370)


Synonyms



Geographic Distribution

Eu.-Japan-Carib.(Cuba)-Pac. O.


Age Range

    Beginning Stage in Treatise Usage:  
Eoc.
    Beginning International Stage:  
Ypresian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
56
    Ending Stage in Treatise Usage:  
Eoc.
    Ending International Stage:  
Priabonian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
33.9


Description

Test of regular or flattened conical form with bluntly rounded apex; early stage of 3 simple globose chambers with basal aperture and thickened perforate wall, later chambers in cyclical series or tiers, area just beneath external wall subdivided by horizontal and vertical partitions forming coarse alveoli, which again are subdivided by thinner, shorter partitions into 2 or 3 smaller alveoli; sutures of chamber tiers visible externally but alveolar walls less distinct except on abraded specimens; wall calcareous, thick, bilamellar, outer wall coarsely perforate, wall of umbilical side and partitions imperforate.




References



Museum or Author Information