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Bolivinoides
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Buliminacea
Family:
Bolivinitidae
Formal Genus Name and Reference:
Bolivinoides CUSHMAN, 1927, *429, p. 89
Type Species:
Bolivina draco MARSSON, 1878, *1228, p. 157, OD
Images
(Click to enlarge in a new window)
Fig. 435,1,2. *B. draco (Marsson), U.Cret.(Campan.), Ger., la-c, side, edge, and top views, X97, 2, dissected specimen showing thick septa, internally tuberculate wall, and apert. tooth plate in later chambers, X100 (*1303).
Synonyms
Geographic Distribution
Eu.-N. Am.-Carib.-S. Am.-Australia-N.Z.-Indon.
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(U.Santon.)
Beginning International Stage:
Santonian
Fraction Up In Beginning Stage:
60
Beginning Date:
84.47
Ending Stage in Treatise Usage:
Paleoc.
Ending International Stage:
Thanetian
Fraction Up In Ending Stage:
100
Ending Date:
56
Description
Test free, rhomboidal, flaring, compressed, chambers low and broad, biserially arranged throughout, septa thick, sutures oblique, obscured externally by strong ornamentation; wall calcareous, single-layered, lamellar, finely perforate, radial in structure, interior tuberculate, exterior surface with strong longitudinal costae and tuberculate; aperture elongate, loop-shaped, basal, extending up face of final chamber with bordering lip and internal tooth plate. [Bolivinoides may have an internal tuberculate wall, but does not show the exterior chamber overlaps or retral processes found in Bolivina, as here restricted. It is also characterized by heavy longitudinal ornamentation.]
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Buliminacea
Family:
Bolivinitidae
Formal Genus Name and Reference:
Bolivinoides CUSHMAN, 1927, *429, p. 89
Type Species:
Bolivina draco MARSSON, 1878, *1228, p. 157, OD
Images
(Click to enlarge in a new window)
Fig. 435,1,2. *B. draco (Marsson), U.Cret.(Campan.), Ger., la-c, side, edge, and top views, X97, 2, dissected specimen showing thick septa, internally tuberculate wall, and apert. tooth plate in later chambers, X100 (*1303).
Synonyms
Geographic Distribution
Eu.-N. Am.-Carib.-S. Am.-Australia-N.Z.-Indon.
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(U.Santon.)
Beginning International Stage:
Santonian
Fraction Up In Beginning Stage:
60
Beginning Date:
84.47
Ending Stage in Treatise Usage:
Paleoc.
Ending International Stage:
Thanetian
Fraction Up In Ending Stage:
100
Ending Date:
56
Description
Test free, rhomboidal, flaring, compressed, chambers low and broad, biserially arranged throughout, septa thick, sutures oblique, obscured externally by strong ornamentation; wall calcareous, single-layered, lamellar, finely perforate, radial in structure, interior tuberculate, exterior surface with strong longitudinal costae and tuberculate; aperture elongate, loop-shaped, basal, extending up face of final chamber with bordering lip and internal tooth plate. [Bolivinoides may have an internal tuberculate wall, but does not show the exterior chamber overlaps or retral processes found in Bolivina, as here restricted. It is also characterized by heavy longitudinal ornamentation.]