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Actinosiphon
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Orbitoidacea
Family:
Orbitoididae
Formal Genus Name and Reference:
Actinosiphon Vaughan, 1929, *1990, p. 163, 166
Type Species:
A. semmesi, OD
Images
(Click to enlarge in a new window)
Fig. 585,1. *A. semmesi, Mex., equat. sec., X80 (*2122)
Synonyms
Orbitosiphon
Geographic Distribution
N.Am.(Mex.)-Indo-Pac. Reg.
Age Range
Beginning Stage in Treatise Usage:
Paleoc.
Beginning International Stage:
Danian
Fraction Up In Beginning Stage:
0
Beginning Date:
66.04
Ending Stage in Treatise Usage:
Paleoc.
Ending International Stage:
Thanetian
Fraction Up In Ending Stage:
100
Ending Date:
56
Description
Embryonic chambers bilocular, large, completely surrounded by a ring of about 11 periembryonic chambers, equatorial chambers in rude radial rows with communication by large median stolon
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Orbitoidacea
Family:
Orbitoididae
Formal Genus Name and Reference:
Actinosiphon Vaughan, 1929, *1990, p. 163, 166
Type Species:
A. semmesi, OD
Images
(Click to enlarge in a new window)
Fig. 585,1. *A. semmesi, Mex., equat. sec., X80 (*2122)
Synonyms
Orbitosiphon
Geographic Distribution
N.Am.(Mex.)-Indo-Pac. Reg.
Age Range
Beginning Stage in Treatise Usage:
Paleoc.
Beginning International Stage:
Danian
Fraction Up In Beginning Stage:
0
Beginning Date:
66.04
Ending Stage in Treatise Usage:
Paleoc.
Ending International Stage:
Thanetian
Fraction Up In Ending Stage:
100
Ending Date:
56
Description
Embryonic chambers bilocular, large, completely surrounded by a ring of about 11 periembryonic chambers, equatorial chambers in rude radial rows with communication by large median stolon