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Robustoschwagerina

Classification

    Phylum:  
Protista
    Subphylum:  
Sarcodina
    Class:  
Reticularea
    Subclass:  
Granuloreticulosia
    Order:  
Foraminiferida
    Suborder:  
Fusulinina
    Superfamily:  
Fusulinacea
    Family:  
Fusulinidae
    Subfamily:  
Schwagerininae
    Formal Genus Name and Reference:  
Robustoschwagerina A. D. MIKLUKHO-MAKLAY, 1959, *1271, p. 160
    Type Species:  
Pseudoschwagerina tumida LIKHAREV, 1939, *1138, p. 41, OD


Images

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Fossil ImageFossil ImageFossil Image
Fig. 320, 3. *R. fllmida (LIKHAREV), Oarvaz Ser., Darvaz; axial sec. of holotype, X8.3 (*1138) (see also Fig. 284,3).


Synonyms



Geographic Distribution

USSR.


Age Range

    Beginning Stage in Treatise Usage:  
Perm.
    Beginning International Stage:  
Asselian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
298.89
    Ending Stage in Treatise Usage:  
Perm.
    Ending International Stage:  
Changhsingian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
251.9


Description

Shell large, deeply umbilicate, highly inflated, first 2 or 3 volutions distinctly fusiform in shape, moderately tightly coiled, and containing prominent chomata, next 3 volutions greatly inflated, deeply umbilicate with very faint chomata against widely spaced septa, outer part of last yolution more tightly coiled and with moderately thick spirotheca (*1138, *1265).




References



Museum or Author Information