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Marginulinopsis
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Nodosariacea
Family:
Nodosariidae
Subfamily:
Nodosariinae
Formal Genus Name and Reference:
Marginulinopsis A. Silvestri, 1904, *1760, p. 253
Type Species:
M. densicostata THALMANN, 1937; SD THALMANN, 1937, *1899a, p. 348
Images
(Click to enlarge in a new window)
Fig. 403,9. *M. densicostata Thalmann, Rec., Challenger Sta. 24, off Culebra Is., W.Indies, 390 fathoms, holotype (BMNH-ZF 1808) refigured, originally described as Marginulina costata Batsch by Brady (*200, pl. 65, fig. 11), 9a,b, X50 (*2117).
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
Jur.
Beginning International Stage:
Hettangian
Fraction Up In Beginning Stage:
0
Beginning Date:
201.36
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test with early stage as in Lenticulina, later uncoiling and rectilinear as in Marginulina; aperture terminal, radiate. [Marginulinopsis is similar to Dimorphina, but differs in having a keeled or angular periphery in the coiled portion.]
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Nodosariacea
Family:
Nodosariidae
Subfamily:
Nodosariinae
Formal Genus Name and Reference:
Marginulinopsis A. Silvestri, 1904, *1760, p. 253
Type Species:
M. densicostata THALMANN, 1937; SD THALMANN, 1937, *1899a, p. 348
Images
(Click to enlarge in a new window)
Fig. 403,9. *M. densicostata Thalmann, Rec., Challenger Sta. 24, off Culebra Is., W.Indies, 390 fathoms, holotype (BMNH-ZF 1808) refigured, originally described as Marginulina costata Batsch by Brady (*200, pl. 65, fig. 11), 9a,b, X50 (*2117).
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
Jur.
Beginning International Stage:
Hettangian
Fraction Up In Beginning Stage:
0
Beginning Date:
201.36
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test with early stage as in Lenticulina, later uncoiling and rectilinear as in Marginulina; aperture terminal, radiate. [Marginulinopsis is similar to Dimorphina, but differs in having a keeled or angular periphery in the coiled portion.]