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Orbitoides
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Orbitoidacea
Family:
Orbitoididae
Formal Genus Name and Reference:
Orbitoides d'Orbigny in LYELL, 1848, *1192, p. 12
Type Species:
Lycophris faujasii Defrance, 1823, *579b, p. 271, = Orbitolites media d’Archiac, 1837, *35, p. 178, SD Jones, Parker, & BRADY, 1866, *1002, appendix I
Images
(Click to enlarge in a new window)
Fig. 584,3. *O. faujasii (Defrance), Fr., 3a,b, equat. sec. vert. sec., X40, X20 (*2113c)
Synonyms
Hymenocyclus
Geographic Distribution
Eu.-Asia(India)-N.Am.
Age Range
Beginning Stage in Treatise Usage:
U.Cret.
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
U.Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Embryonic chambers surrounded by thick, perforated wall, bilocular to quadrilocular, or teratologically with more than 4 irregularly arranged chambers, equatorial chambers arcuate, lateral chambers reduced or well developed, slitlike
References
Lyell, Charles, 1848, On the relative age and position of the so-called Nummulite limestone of Alabama: Geol. Soc. London, Quart. Jour., v. 4, p. 10-16.
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Orbitoidacea
Family:
Orbitoididae
Formal Genus Name and Reference:
Orbitoides d'Orbigny in LYELL, 1848, *1192, p. 12
Type Species:
Lycophris faujasii Defrance, 1823, *579b, p. 271, = Orbitolites media d’Archiac, 1837, *35, p. 178, SD Jones, Parker, & BRADY, 1866, *1002, appendix I
Images
(Click to enlarge in a new window)
Fig. 584,3. *O. faujasii (Defrance), Fr., 3a,b, equat. sec. vert. sec., X40, X20 (*2113c)
Synonyms
Hymenocyclus
Geographic Distribution
Eu.-Asia(India)-N.Am.
Age Range
Beginning Stage in Treatise Usage:
U.Cret.
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
U.Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Embryonic chambers surrounded by thick, perforated wall, bilocular to quadrilocular, or teratologically with more than 4 irregularly arranged chambers, equatorial chambers arcuate, lateral chambers reduced or well developed, slitlike
References
Lyell, Charles, 1848, On the relative age and position of the so-called Nummulite limestone of Alabama: Geol. Soc. London, Quart. Jour., v. 4, p. 10-16.