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Neoeponides

Classification

    Phylum:  
Protista
    Subphylum:  
Sarcodina
    Class:  
Reticularea
    Subclass:  
Granuloreticulosia
    Order:  
Foraminiferida
    Suborder:  
Rotalina
    Superfamily:  
Orbitoidacea
    Family:  
Eponididae
    Formal Genus Name and Reference:  
Neoeponides Reiss, 1960, *1533, p. 17
    Type Species:  
Rotalina schreibersii D'ORBIGNY, 1846, *1395, p. 154, OD


Images

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Fig. 547,1-3. *N. schreibersii (D'ORBIGNY), Mio., Aus. (1), Israel (2a), Morocco (2b); 1a-c, opposite sides and edge view of holotype, X17 (*700); 2a, equat. sec. showing sulcus at inner edge of septa, X55; 2b, axial sec. with recurved edge of septa resulting in appear- ance of tooth plate, X70; 3a, apert. view, X180; 3b, chamber interior with recurved inner edge (inframarginal sulcus), X180 (*1533)


Synonyms

Cyclospira


Geographic Distribution

Eu.-Asia (Israel) -Afr.-Pac. O.-Medit. Sea.-Red Sea-AtI.


Age Range

    Beginning Stage in Treatise Usage:  
Paleoc.
    Beginning International Stage:  
Danian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
66.04
    Ending Stage in Treatise Usage:  
Rec.
    Ending International Stage:  
Meghalayan
    Fraction Up In Ending Stage:  
100
    Ending Date:  
0


Description

Test free, trochospiral, plano-convex to inequally biconvex, periphery angled and carinate, sutures thickened, oblique and curved on elevated spiral side, radial on umbilicate opposite side, depressed and thickened near umbilical margin. septa primarily double (bilamellar) with intraseptal passages; wall calcareous, coarsely perforate, radial in structure, secondary thickening of septa near umbilical margin may form an elevated ring; primary aperture an interiomarginal arch extending from periphery to umbilicus, bordered by imperforate lip which may be pustulose or granular. [Neoeponides was described as a new genus by REISS but was preoccupied by the isogenotypic Cyc!ospira ElM ER & FICKERT, 1899, which is a homonym of Cyc!ospira HALL & CLARKE, 1894.]




References



Museum or Author Information