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Sphaerulina
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Fusulinina
Superfamily:
Fusulinacea
Family:
Staffellidae
Formal Genus Name and Reference:
Sphaerulina LEE, 19331934, *1120, p. 16
Type Species:
S. crassispira, OD
Images
(Click to enlarge in a new window)
Fig. 301,1. *S. crassispira, Kweichow; 1a, axial sec. of holotype, X30; 1b, axial sec. of paratype, X30 (*1922).
Synonyms
Geographic Distribution
Asia(China)
Age Range
Beginning Stage in Treatise Usage:
Perm.
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Minute, mature shell spherical and slightly umbilicate, composed of about 10 volutions, planispiral throughout, first 3 or 4 volutions discoidal; spirotheca composed of tectum and alveolar ?keriotheca; septa plane (*1120).
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Fusulinina
Superfamily:
Fusulinacea
Family:
Staffellidae
Formal Genus Name and Reference:
Sphaerulina LEE, 19331934, *1120, p. 16
Type Species:
S. crassispira, OD
Images
(Click to enlarge in a new window)
Fig. 301,1. *S. crassispira, Kweichow; 1a, axial sec. of holotype, X30; 1b, axial sec. of paratype, X30 (*1922).
Synonyms
Geographic Distribution
Asia(China)
Age Range
Beginning Stage in Treatise Usage:
Perm.
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Minute, mature shell spherical and slightly umbilicate, composed of about 10 volutions, planispiral throughout, first 3 or 4 volutions discoidal; spirotheca composed of tectum and alveolar ?keriotheca; septa plane (*1120).