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Sulcoperculina
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Rotaliacea
Family:
Nummulitidae
Subfamily:
Nummulitinae
Formal Genus Name and Reference:
Sulcoperculina THALMANN, 1939, *1899b, p. 330
Type Species:
Camerina(?) dickersoni PALMER, 1934, *1408, p. 243; OD
Images
(Click to enlarge in a new window)
Fig. 520,4. *8. dickersoni (PALMER), Cuba; 4a, ext. view, X40 (*1408); 4b,c, med., transv. sees., X40 (*2113a); 4d, schematic internal structure (*2111)
Synonyms
Geographic Distribution
trop. Am.
Age Range
Beginning Stage in Treatise Usage:
U.Cret.
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
U.Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Test involute, slightly asymmetrical, peripheral margin with radial plates forming a peripheral sulcus.
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Rotaliacea
Family:
Nummulitidae
Subfamily:
Nummulitinae
Formal Genus Name and Reference:
Sulcoperculina THALMANN, 1939, *1899b, p. 330
Type Species:
Camerina(?) dickersoni PALMER, 1934, *1408, p. 243; OD
Images
(Click to enlarge in a new window)
Fig. 520,4. *8. dickersoni (PALMER), Cuba; 4a, ext. view, X40 (*1408); 4b,c, med., transv. sees., X40 (*2113a); 4d, schematic internal structure (*2111)
Synonyms
Geographic Distribution
trop. Am.
Age Range
Beginning Stage in Treatise Usage:
U.Cret.
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
U.Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Test involute, slightly asymmetrical, peripheral margin with radial plates forming a peripheral sulcus.