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Yangchienia
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Fusulinina
Superfamily:
Fusulinacea
Family:
Fusulinidae
Subfamily:
Fusulininae
Formal Genus Name and Reference:
Yangchienia LEE, 19331934, *1120, p. 14
Type Species:
Y. iniqua, OD
Images
(Click to enlarge in a new window)
Fig. 313,1. *Y. iniqua, Chihsia Ls., China(E. of Chusanshan); la, axial sec. of holotype, X40; 1b, tang. sec. of paratype, X40 (*1922). --Fig. 313,2 Y. haydeni; THOMPSON, U.Perm.(Bamian Ls.), Afghan.; 2a, axial sec. of holotype, X20; 2b, enlargement of 2a showing chomata structure, X100 (*1922).
Synonyms
Jangchienia
Geographic Distribution
Eu.(Sicily-Greece) - Asia (China-Asia M.Afghan)
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 small, inflated-fusiform, inner 3 or 4 volutions discoidal, with asymmetrical to fusiform outer volutions: spirotheca consisting of tectum and diaphanotheca with thick lower and upper tectoria; septa unAuted; chomata massive, extending
almost to polar ends (*1269, *1911, *1922).
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Fusulinina
Superfamily:
Fusulinacea
Family:
Fusulinidae
Subfamily:
Fusulininae
Formal Genus Name and Reference:
Yangchienia LEE, 19331934, *1120, p. 14
Type Species:
Y. iniqua, OD
Images
(Click to enlarge in a new window)
Fig. 313,1. *Y. iniqua, Chihsia Ls., China(E. of Chusanshan); la, axial sec. of holotype, X40; 1b, tang. sec. of paratype, X40 (*1922). --Fig. 313,2 Y. haydeni; THOMPSON, U.Perm.(Bamian Ls.), Afghan.; 2a, axial sec. of holotype, X20; 2b, enlargement of 2a showing chomata structure, X100 (*1922).
Synonyms
Jangchienia
Geographic Distribution
Eu.(Sicily-Greece) - Asia (China-Asia M.Afghan)
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 small, inflated-fusiform, inner 3 or 4 volutions discoidal, with asymmetrical to fusiform outer volutions: spirotheca consisting of tectum and diaphanotheca with thick lower and upper tectoria; septa unAuted; chomata massive, extending
almost to polar ends (*1269, *1911, *1922).