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Sphaeroidinellopsis
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Globigerinacea
Family:
Globigerinidae
Subfamily:
Sphaeroidinellinae
Formal Genus Name and Reference:
Sphaeroidinellopsis Banner & BLOW, 1959, *77, p. 15
Type Species:
Sphaeroidinella dehiscens subdehiscens Blow, 1959, *149, p. 195; OD
Images
(Click to enlarge in a new window)
Fig. 542,1. *S. subdehiscens (BLOW), Mio., Venez.; 1a-c, opposite sides and edge of holotype, X47 (*77).
Synonyms
Geographic Distribution
S.Am.-Carib.-1ndon.-N.Z.-Eu.
Age Range
Beginning Stage in Treatise Usage:
L.Mio.
Beginning International Stage:
Aquitanian
Fraction Up In Beginning Stage:
0
Beginning Date:
23.04
Ending Stage in Treatise Usage:
U.Mio.
Ending International Stage:
Messinian
Fraction Up In Ending Stage:
100
Ending Date:
5.34
Description
Test trochospiral, similar to Globigerina, with wall structure like that of Sphaeroidinella, primary wall covered by secondary layer reducing porosity; primary aperture umbilical, with bordering lip, no sutural secondary apertures.
References
Banner, F. T., \& Blow, W. H., 1959, The classification and stratigraphical distribution of the Globigerinaceae: Palaeontology, v. 2, pt. 1, p. 1-27, pl. 1-3.-(78) 1960, The taxonomy, morphology and affinities of the genera included in the subfamily Hastigerininae: Micropaleontology, v. 6, no. 1, p. 19-31, text-fig. 1-11. -(79) 1960, Some primary types of species belonging to the superfamily Globigerinacea: Cushman Found. Foram. Research Contrib., v. 11, pt. 1, p. 1-41, pl. 1-8.
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Globigerinacea
Family:
Globigerinidae
Subfamily:
Sphaeroidinellinae
Formal Genus Name and Reference:
Sphaeroidinellopsis Banner & BLOW, 1959, *77, p. 15
Type Species:
Sphaeroidinella dehiscens subdehiscens Blow, 1959, *149, p. 195; OD
Images
(Click to enlarge in a new window)
Fig. 542,1. *S. subdehiscens (BLOW), Mio., Venez.; 1a-c, opposite sides and edge of holotype, X47 (*77).
Synonyms
Geographic Distribution
S.Am.-Carib.-1ndon.-N.Z.-Eu.
Age Range
Beginning Stage in Treatise Usage:
L.Mio.
Beginning International Stage:
Aquitanian
Fraction Up In Beginning Stage:
0
Beginning Date:
23.04
Ending Stage in Treatise Usage:
U.Mio.
Ending International Stage:
Messinian
Fraction Up In Ending Stage:
100
Ending Date:
5.34
Description
Test trochospiral, similar to Globigerina, with wall structure like that of Sphaeroidinella, primary wall covered by secondary layer reducing porosity; primary aperture umbilical, with bordering lip, no sutural secondary apertures.
References
Banner, F. T., \& Blow, W. H., 1959, The classification and stratigraphical distribution of the Globigerinaceae: Palaeontology, v. 2, pt. 1, p. 1-27, pl. 1-3.-(78) 1960, The taxonomy, morphology and affinities of the genera included in the subfamily Hastigerininae: Micropaleontology, v. 6, no. 1, p. 19-31, text-fig. 1-11. -(79) 1960, Some primary types of species belonging to the superfamily Globigerinacea: Cushman Found. Foram. Research Contrib., v. 11, pt. 1, p. 1-41, pl. 1-8.