Home Plot Diversity Curves Tree of Life About Admin Login

Welcome to the Treatise on Invertebrate Paleontology!

Please enter a genera name to retrieve more information.

Search By:
and Class
and Order

Hemigordiopsis

Classification

    Phylum:  
Protista
    Subphylum:  
Sarcodina
    Class:  
Reticularea
    Subclass:  
Granuloreticulosia
    Order:  
Foraminiferida
    Suborder:  
Miliolina
    Superfamily:  
Miliolacea
    Family:  
Fischerinidae
    Subfamily:  
Cyclogyrinae
    Formal Genus Name and Reference:  
Hemigordiopsis Reichel, 1945, *1516, p. 528
    Type Species:  
H. renzi, OD


Images

(Click to enlarge in a new window)
Fig. 332,1,2. *H. renzi; la, axial sec. of holotype (wall appears dark and chamber cavity light); 1b, holotype, diagrammatic to show early streptospiral development and later planispiral coiling, X20; 2, equat. sec. of paratype showing non-septate tube, X20 (*1516).


Synonyms



Geographic Distribution

E.Medit.(Cyprus)


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

Test globular, consisting of globular proloculus followed by nonseptate second chamber, coiling streptospiral in early portion and later planispiral, involute, so that only final whorl is visible externally; wall calcareous, porce!aneous, thick, chamber cavity much reduced. [Hemigordiopsis is similar to Vidalina and Hemigordius in its involute, later planispiral development, but differs from Vidalina in early streptospiral coiling, and differs from Vidalina and Hemigordius in its globular test resulting from very broad and low chambers.]




References



Museum or Author Information