Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Heterostegina
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Rotaliacea
Family:
Nummulitidae
Subfamily:
Cycloclypeinae
Formal Genus Name and Reference:
Heterostegina D'ORBIGNY, 1826, *1391, p. 304, 305
Type Species:
H. depressa, SD Parker, Jones & BRADY, 1865, *1419, p. 36
Images
(Click to enlarge in a new window)
Fig. 521,3. H. antillea Cushman, U.Oligo., C.Am.(Panama), 3a,b, med., transv. secs., X16 (*363).
Synonyms
Heterosteginella
Geographic Distribution
Eoc.-Rec., cosmop., trop.
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:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Like Nummulites but later chambers divided into rectangular chamberlets
References
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:
Heterostegina D'ORBIGNY, 1826, *1391, p. 304, 305
Type Species:
H. depressa, SD Parker, Jones & BRADY, 1865, *1419, p. 36
Images
(Click to enlarge in a new window)
Fig. 521,3. H. antillea Cushman, U.Oligo., C.Am.(Panama), 3a,b, med., transv. secs., X16 (*363).
Synonyms
Heterosteginella
Geographic Distribution
Eoc.-Rec., cosmop., trop.
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:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Like Nummulites but later chambers divided into rectangular chamberlets