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Globorotalites
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Cassidulinacea
Family:
Osangulariidae
Formal Genus Name and Reference:
Globorotalites BROTZEN, 1942, *240, p. 31
Type Species:
Globorotalia multisepta BROTZEN, 1936, *237, p. 161, OD
Images
(Click to enlarge in a new window)
Fig. 615,8. *G. multisepta (BROTZEN), U. Cret.(Coniac.), Sweden; 8a-c, opp. sides and edge view of syntype, X93 (*2117). -- Fig. 615,9. G. micheliniana (O'ORBIGNY), U.Cret.(Campan.), Fr.; 90, apert. view showing aperture and indentation forming murus reflectus below it; 9b, chamber interior showing broken murus reflectus; both X 90 (*1533)
Synonyms
Geographic Distribution
Eu.
Age Range
Beginning Stage in Treatise Usage:
Cret.(Alb..}
Beginning International Stage:
Albian
Fraction Up In Beginning Stage:
0
Beginning Date:
113.2
Ending Stage in Treatise Usage:
Cret.(Maastrict.}
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Test free, trochospiral, plano-convex, spiral side flat or slightly concave or convex, umbilical side strongly convex, periphery carinate, with poreless keel; chambers increasing gradually in size, sutures oblique, thickened on spiral side, radial and curved or sinuate, depressed on umbilical side, which has broad pseudoumbilicus and angular umbilical shoulder, deep indentation of base of apertural face below aperture (murus reflectus) attached to previous septum and externally resembles aperture although it does not communicate with chamber interior; wall calcareous, finely perforate, granular in structure, bilamellar; aperture interiomarginal, on umbilical side, midway between umbilicus and periphery, deeply indented murus reflectus below aperture falsely appears to form second opening.
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Cassidulinacea
Family:
Osangulariidae
Formal Genus Name and Reference:
Globorotalites BROTZEN, 1942, *240, p. 31
Type Species:
Globorotalia multisepta BROTZEN, 1936, *237, p. 161, OD
Images
(Click to enlarge in a new window)
Fig. 615,8. *G. multisepta (BROTZEN), U. Cret.(Coniac.), Sweden; 8a-c, opp. sides and edge view of syntype, X93 (*2117). -- Fig. 615,9. G. micheliniana (O'ORBIGNY), U.Cret.(Campan.), Fr.; 90, apert. view showing aperture and indentation forming murus reflectus below it; 9b, chamber interior showing broken murus reflectus; both X 90 (*1533)
Synonyms
Geographic Distribution
Eu.
Age Range
Beginning Stage in Treatise Usage:
Cret.(Alb..}
Beginning International Stage:
Albian
Fraction Up In Beginning Stage:
0
Beginning Date:
113.2
Ending Stage in Treatise Usage:
Cret.(Maastrict.}
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Test free, trochospiral, plano-convex, spiral side flat or slightly concave or convex, umbilical side strongly convex, periphery carinate, with poreless keel; chambers increasing gradually in size, sutures oblique, thickened on spiral side, radial and curved or sinuate, depressed on umbilical side, which has broad pseudoumbilicus and angular umbilical shoulder, deep indentation of base of apertural face below aperture (murus reflectus) attached to previous septum and externally resembles aperture although it does not communicate with chamber interior; wall calcareous, finely perforate, granular in structure, bilamellar; aperture interiomarginal, on umbilical side, midway between umbilicus and periphery, deeply indented murus reflectus below aperture falsely appears to form second opening.