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Planoglobulina
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Globigerinacea
Family:
Heterohelicidae
Subfamily:
Heterohelicinae
Formal Genus Name and Reference:
Planoglobulina CUSHMAN, 1927, *428, p. 77
Type Species:
Gümbelina acervulinoides EGGER, 1899, *659, p. 36; OD]
Images
(Click to enlarge in a new window)
Fig. 525,4. *P. acervulinoides (EGGER),
Senon., Ger.; side view, XI16 (*2117)
Synonyms
Ventilabrella
Geographic Distribution
Eu.- 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
Early stage coiled in microspheric form, later biserial, and finally with chamber proliferation in plane of biseriality, resulting in flabelliform test; exterior commonly ornamented with longitudinal striae; aperture multiple, on final series of chambers.
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Globigerinacea
Family:
Heterohelicidae
Subfamily:
Heterohelicinae
Formal Genus Name and Reference:
Planoglobulina CUSHMAN, 1927, *428, p. 77
Type Species:
Gümbelina acervulinoides EGGER, 1899, *659, p. 36; OD]
Images
(Click to enlarge in a new window)
Fig. 525,4. *P. acervulinoides (EGGER),
Senon., Ger.; side view, XI16 (*2117)
Synonyms
Ventilabrella
Geographic Distribution
Eu.- 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
Early stage coiled in microspheric form, later biserial, and finally with chamber proliferation in plane of biseriality, resulting in flabelliform test; exterior commonly ornamented with longitudinal striae; aperture multiple, on final series of chambers.