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Praealveolina
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Miliolina
Superfamily:
Miliolacea
Family:
Alveolinidae
Formal Genus Name and Reference:
Praealveolina REICHEL, 1933, *1512, p. 270
Type Species:
P. tenuis (=?Alveolina cretacea D'ARCHIAC, 1837,
*35, p. 191, unfigured); OD
Images
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Synonyms
Geographic Distribution
N.Afr.-Eu.(Fr.-Spain-Port.)- Asia (M.East-India).
Age Range
Beginning Stage in Treatise Usage:
L.Cret.(U.Alb.)
Beginning International Stage:
Albian
Fraction Up In Beginning Stage:
50
Beginning Date:
106.85
Ending Stage in Treatise Usage:
U.Cret.(Turon.)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
100
Ending Date:
89.39
Description
Test ovoid, fusiform, or cylindrical; septula of 2 adjacent chambers continuously arranged, with several rows of chamberlets (and apertures) below main row; at least in microspheric form of elongate species, chamberlets of layers belonging to same chamber connected by radial passages which extend downward from preseptal passage; narrow su tural apertures connecting successive whorls, most species
regularly coiled throughout (although microspheric form slightly 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:
Praealveolina REICHEL, 1933, *1512, p. 270
Type Species:
P. tenuis (=?Alveolina cretacea D'ARCHIAC, 1837,
*35, p. 191, unfigured); OD
Images
(Click to enlarge in a new window)Synonyms
Geographic Distribution
N.Afr.-Eu.(Fr.-Spain-Port.)- Asia (M.East-India).
Age Range
Beginning Stage in Treatise Usage:
L.Cret.(U.Alb.)
Beginning International Stage:
Albian
Fraction Up In Beginning Stage:
50
Beginning Date:
106.85
Ending Stage in Treatise Usage:
U.Cret.(Turon.)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
100
Ending Date:
89.39
Description
Test ovoid, fusiform, or cylindrical; septula of 2 adjacent chambers continuously arranged, with several rows of chamberlets (and apertures) below main row; at least in microspheric form of elongate species, chamberlets of layers belonging to same chamber connected by radial passages which extend downward from preseptal passage; narrow su tural apertures connecting successive whorls, most species
regularly coiled throughout (although microspheric form slightly irregular).