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Lasiodiscus
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Fusulinina
Superfamily:
Endothyracea
Family:
Lasiodiscidae
Formal Genus Name and Reference:
Lasiodiscus Reichel, 1945, *1517, p. 525
Type Species:
L. granifer, OD
Images
(Click to enlarge in a new window)
Fig. 273,1-3. *L. granifer, U.Perm., Cyprus, 1, holotype, oblique sec. passing near proloculus, X145, 2,3, reconstr. equat. and axial secs., X85 (*1517).
Synonyms
Geographic Distribution
Eu. (Greece-Cyprus-USSR)
Age Range
Beginning Stage in Treatise Usage:
M.Carb.
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
U. Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Test free, consisting of proloculus, followed by planispirally enrolled tubular second chamber, one of surfaces ornamented by hyaline tubercles of radially fibrous thickening, and opposite side with tubular chamberlets, opening into main enrolled chamber by apertures along spiral suture, test calcareous, imperforate, finely granular, dark in transmitted light, tubercles vitreous. [Magnification of the illustrations has been computed from the size of the specimens, as a discrepancy is found in the stated magnifications of the photographs and text figures with the stated size in the original publication.]
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Fusulinina
Superfamily:
Endothyracea
Family:
Lasiodiscidae
Formal Genus Name and Reference:
Lasiodiscus Reichel, 1945, *1517, p. 525
Type Species:
L. granifer, OD
Images
(Click to enlarge in a new window)
Fig. 273,1-3. *L. granifer, U.Perm., Cyprus, 1, holotype, oblique sec. passing near proloculus, X145, 2,3, reconstr. equat. and axial secs., X85 (*1517).
Synonyms
Geographic Distribution
Eu. (Greece-Cyprus-USSR)
Age Range
Beginning Stage in Treatise Usage:
M.Carb.
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
U. Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Test free, consisting of proloculus, followed by planispirally enrolled tubular second chamber, one of surfaces ornamented by hyaline tubercles of radially fibrous thickening, and opposite side with tubular chamberlets, opening into main enrolled chamber by apertures along spiral suture, test calcareous, imperforate, finely granular, dark in transmitted light, tubercles vitreous. [Magnification of the illustrations has been computed from the size of the specimens, as a discrepancy is found in the stated magnifications of the photographs and text figures with the stated size in the original publication.]