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Rugososchwagerina
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Fusulinina
Superfamily:
Fusulinacea
Family:
Fusulinidae
Subfamily:
Schwagerininae
Formal Genus Name and Reference:
Rugososchwagerina A. D. MIKLUKHO-MAKLAY, 1959, *1271, p. 160
Type Species:
Schwagerina yabei Staff, 1909, *1830, p. 463, OD
Images
(Click to enlarge in a new window)
Fig. 321,la-c. *R. yabei (STAFF), Sosio Beus, Sicily; 1a-c, tang., sagittal, and axial
sees., X8 (*1922). --Fig. 321.2. R. fosteri (THOMPSON & MILLER), Yanghsin Ls., W.China; 2a, axial sec. of lectotype, X8; 2b,c, sagittal sec. of paratype, X8, X16 (*1922).
Synonyms
Rugososchwagerina
Geographic Distribution
Eu. (Sicily)-Asia (Iran-Iraq-Afghan.-W. China-Asia Minor).
Age Range
Beginning Stage in Treatise Usage:
U.Perm.
Beginning International Stage:
Wuchiapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
259.55
Ending Stage in Treatise Usage:
U.Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Shell inflated-fusiform, first 3 or 4 volutions tightly coiled, elongate-fusiform, outer volutions greatly inflated, spirotheca with structure as in Schwagerina, moderately thin in early, tightly coiled part of shell and next 1 or 2 volutions, becoming rather thick and more coarsely alveolar in outer 2 or 3 volutions, septa closely spaced in first 3 or 4 volutions, more widely spaced in next 2 or 3 and then more closely spaced again in outer 1 or 2, chomata moderately well developed but somewhat discontinuous throughout most of shell, absent in outer volution (*1271)
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Fusulinina
Superfamily:
Fusulinacea
Family:
Fusulinidae
Subfamily:
Schwagerininae
Formal Genus Name and Reference:
Rugososchwagerina A. D. MIKLUKHO-MAKLAY, 1959, *1271, p. 160
Type Species:
Schwagerina yabei Staff, 1909, *1830, p. 463, OD
Images
(Click to enlarge in a new window)
Fig. 321,la-c. *R. yabei (STAFF), Sosio Beus, Sicily; 1a-c, tang., sagittal, and axial
sees., X8 (*1922). --Fig. 321.2. R. fosteri (THOMPSON & MILLER), Yanghsin Ls., W.China; 2a, axial sec. of lectotype, X8; 2b,c, sagittal sec. of paratype, X8, X16 (*1922).
Synonyms
Rugososchwagerina
Geographic Distribution
Eu. (Sicily)-Asia (Iran-Iraq-Afghan.-W. China-Asia Minor).
Age Range
Beginning Stage in Treatise Usage:
U.Perm.
Beginning International Stage:
Wuchiapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
259.55
Ending Stage in Treatise Usage:
U.Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Shell inflated-fusiform, first 3 or 4 volutions tightly coiled, elongate-fusiform, outer volutions greatly inflated, spirotheca with structure as in Schwagerina, moderately thin in early, tightly coiled part of shell and next 1 or 2 volutions, becoming rather thick and more coarsely alveolar in outer 2 or 3 volutions, septa closely spaced in first 3 or 4 volutions, more widely spaced in next 2 or 3 and then more closely spaced again in outer 1 or 2, chomata moderately well developed but somewhat discontinuous throughout most of shell, absent in outer volution (*1271)