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Cisalveolina
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Miliolina
Superfamily:
Miliolacea
Family:
Alveolinidae
Formal Genus Name and Reference:
Cisalveolina Reichel, 1941, *1515, p. 255
Type Species:
C. fallax, OD
Images
(Click to enlarge in a new window)
Fig. 396,2. *C. fallax, Cenoman., Iran, X35 (*2119A).
Synonyms
Geographic Distribution
M.East
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(U.Cenoman.)
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
75
Beginning Date:
95.55
Ending Stage in Treatise Usage:
U.Cret.(L. Turon.)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
25
Ending Date:
92.77
Description
Test ovoid, spherical, or nautiloid, septula alternating, with spacious postseptal passages but preseptal passages greatly reduced, aperture comprising long slit that extends from pole to pole, its upper edge fluted, juvenile coiling of microspheric forms irregular
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Miliolina
Superfamily:
Miliolacea
Family:
Alveolinidae
Formal Genus Name and Reference:
Cisalveolina Reichel, 1941, *1515, p. 255
Type Species:
C. fallax, OD
Images
(Click to enlarge in a new window)
Fig. 396,2. *C. fallax, Cenoman., Iran, X35 (*2119A).
Synonyms
Geographic Distribution
M.East
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(U.Cenoman.)
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
75
Beginning Date:
95.55
Ending Stage in Treatise Usage:
U.Cret.(L. Turon.)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
25
Ending Date:
92.77
Description
Test ovoid, spherical, or nautiloid, septula alternating, with spacious postseptal passages but preseptal passages greatly reduced, aperture comprising long slit that extends from pole to pole, its upper edge fluted, juvenile coiling of microspheric forms irregular