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Spiroclypeus
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Rotaliacea
Family:
Nummulitidae
Subfamily:
Cycloclypeinae
Formal Genus Name and Reference:
Spiroclypeus DOUVILLÉ, 1905, *615, p. 458
Type Species:
S. orbitoideus, OD
Images
(Click to enlarge in a new window)
Fig. 521,4. S. tidoenganensis van der Vlerk, L.Mio., Saipan Is., 4 a, b, med. and transv. secs., X16 (*2113c).
Synonyms
Geographic Distribution
Indo-Pac.Reg.-Eu.; Oligo., W. Indies
Age Range
Beginning Stage in Treatise Usage:
Eoc.
Beginning International Stage:
Ypresian
Fraction Up In Beginning Stage:
0
Beginning Date:
56
Ending Stage in Treatise Usage:
L.Mio..
Ending International Stage:
Burdigalian
Fraction Up In Ending Stage:
100
Ending Date:
15.99
Description
Like Heterostegina but lateral chambers developed on each side of the median layer
References
Schlumberger, Charles, , \& Douvillé, Henri, 1905, Sur deux Foraminifères Eocènes, Dictyoconus egyptiensis Chapm. et Lituonella roberti, nov.gen. et sp.: Soc. géol. France, Bull., ser. 4, v. 5, no. 3, p. 291-304, pl. 9.
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Rotaliacea
Family:
Nummulitidae
Subfamily:
Cycloclypeinae
Formal Genus Name and Reference:
Spiroclypeus DOUVILLÉ, 1905, *615, p. 458
Type Species:
S. orbitoideus, OD
Images
(Click to enlarge in a new window)
Fig. 521,4. S. tidoenganensis van der Vlerk, L.Mio., Saipan Is., 4 a, b, med. and transv. secs., X16 (*2113c).
Synonyms
Geographic Distribution
Indo-Pac.Reg.-Eu.; Oligo., W. Indies
Age Range
Beginning Stage in Treatise Usage:
Eoc.
Beginning International Stage:
Ypresian
Fraction Up In Beginning Stage:
0
Beginning Date:
56
Ending Stage in Treatise Usage:
L.Mio..
Ending International Stage:
Burdigalian
Fraction Up In Ending Stage:
100
Ending Date:
15.99
Description
Like Heterostegina but lateral chambers developed on each side of the median layer
References
Schlumberger, Charles, , \& Douvillé, Henri, 1905, Sur deux Foraminifères Eocènes, Dictyoconus egyptiensis Chapm. et Lituonella roberti, nov.gen. et sp.: Soc. géol. France, Bull., ser. 4, v. 5, no. 3, p. 291-304, pl. 9.