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Ticinella

Classification

    Phylum:  
Protista
    Subphylum:  
Sarcodina
    Class:  
Reticularea
    Subclass:  
Granuloreticulosia
    Order:  
Foraminiferida
    Suborder:  
Rotalina
    Superfamily:  
Globigerinacea
    Family:  
Rotaliporidae
    Subfamily:  
Rotaliporinae
    Formal Genus Name and Reference:  
Ticinella Reichel, 1950, *1522, p. 600
    Type Species:  
Anomalina roberti GANDOLFI, 1942, *768, p. 100, OD


Images

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Fig. 528,5. *T. roberti (GANDOLFI), U.Cret. (Cenoman.), Eu.(Switz.); 5a-c, spiral, umbilical, and edge views of topotype, X110 (*1183).


Synonyms

Globotruncana


Geographic Distribution

cosmop.


Age Range

    Beginning Stage in Treatise Usage:  
L.Crel.(U .Alb.)
    Beginning International Stage:  
Albian
    Fraction Up In Beginning Stage:  
50
    Beginning Date:  
106.85
    Ending Stage in Treatise Usage:  
U.Crel.( Cenoman.)
    Ending International Stage:  
Cenomanian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
93.9


Description

Test free, trochospiral, biconvex to plano-convex, umbilicate, periphery rounded, and lacking keel or poreless margin, chambers ovate, sutures on spiral side curved, depressed to elevated, on umbilical side flushed to depressed, radial or slightly curved, wall calcareous, perforate, radial in structure, surface smooth to spinose, primary aperture interiomarginal, extra-umbilical-umbilical, and may be bordered above by lip, secondary sutural apertures on umbilical side, commonly one per suture, more rarely 2 or more, and each may be bordered by narrow lip, which in some specimens may be sufficiently large to give appearance of a cover plate, although not as extensive as umbilical tegilla of the Globotruncanidae.




References



Museum or Author Information