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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
(Click to enlarge in a new window)
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
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
(Click to enlarge in a new window)
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.]