Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Siderolites
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Rotaliacea
Family:
Calcarinidae
Formal Genus Name and Reference:
Siderolites LAMARCK, 1801, *1084, p. 376
Type Species:
S. calcitrapoides, OD(M)
Images
(Click to enlarge in a new window)
Fig. 501,S; 504,1-3. *S. calci- trapoides, U .Cret. (Maastricht.), Neth.; 501,5a,b, side and edge views, X11 (*2117); 504,1,2, equat. and axial secs., X20 (*872); 504,3, de calcified equat. sec. in canada balsam preparation, X20 (*1998)
Synonyms
Siderolithes, Sidérolite
Geographic Distribution
Eu.-Asia(India)
Age Range
Beginning Stage in Treatise Usage:
U.Cret.
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
L.Eoc.
Ending International Stage:
Ypresian
Fraction Up In Ending Stage:
100
Ending Date:
48.07
Description
Test large, planispirally coiled throughout from globular proloculus, without raspberry type of embryonic apparatus and without supplementary acervuline chambers, wall of chamber roofs and floors of 2 layers, inner layer thin and finely perforate, outer layer thick and coarsely perforate, few large coarse spines originating near proloculus and radiating in plane of coiling, spines with ramifying canal system and commonly protruding somewhat at periphery, numerous conical pillars piercing successive spiral lamellae and appearing as tubercles at test surface. Differs from Calcarina in being planispiral rather than trochospiral throughout.
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Rotaliacea
Family:
Calcarinidae
Formal Genus Name and Reference:
Siderolites LAMARCK, 1801, *1084, p. 376
Type Species:
S. calcitrapoides, OD(M)
Images
(Click to enlarge in a new window)
Fig. 501,S; 504,1-3. *S. calci- trapoides, U .Cret. (Maastricht.), Neth.; 501,5a,b, side and edge views, X11 (*2117); 504,1,2, equat. and axial secs., X20 (*872); 504,3, de calcified equat. sec. in canada balsam preparation, X20 (*1998)
Synonyms
Siderolithes, Sidérolite
Geographic Distribution
Eu.-Asia(India)
Age Range
Beginning Stage in Treatise Usage:
U.Cret.
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
L.Eoc.
Ending International Stage:
Ypresian
Fraction Up In Ending Stage:
100
Ending Date:
48.07
Description
Test large, planispirally coiled throughout from globular proloculus, without raspberry type of embryonic apparatus and without supplementary acervuline chambers, wall of chamber roofs and floors of 2 layers, inner layer thin and finely perforate, outer layer thick and coarsely perforate, few large coarse spines originating near proloculus and radiating in plane of coiling, spines with ramifying canal system and commonly protruding somewhat at periphery, numerous conical pillars piercing successive spiral lamellae and appearing as tubercles at test surface. Differs from Calcarina in being planispiral rather than trochospiral throughout.