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Lithostrotion
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Lithostrotionina
Family:
Lithostrotionidae
Subfamily:
Lithostrotioninae
Formal Genus Name and Reference:
Lithostrotion FLEMING, 1828m o, 508
Type Species:
L. striatum; SD ICZN, Opin. 117; +I870.l4.370, missing from FLEMING Coil., RSM, Edinburgh; lectotype by ?THOMSON, 1887, p. 377 and KATO, 1971, p. 2; L.Carb., Brit. I.
Images
(Click to enlarge in a new window)
Fig. 248,2a. *L. striatllm, lectotype, L.Carb., Brit. 1.; transv. sec., X 1.9 (Thomson, 1887). --Fig. 248,2b-d. L. araehnoidellm (McCoY), lectotype, Eng., Derbyshire; bod, transv., long. secs., X1.9 (Hill, n). --Fig. 248,2e,f L. flemingi (McCoY), lectotype, Eng., Derbyshire; e,!, transv., long. secs., X1.9 (Hill, n).
Synonyms
Lithostrotium, Nemaphyllum, Lasmocyathus, Lithostrocion, Nematophyllum, Lithostrontion, Lithostrocian, Cystistrotion, ?Cionodendron
Geographic Distribution
Eu. (Brit.I.-France-Belg.-Ger.-Pol.-USSR)-N. Afr. (W. Sahara-Alg.)-Asia (Kazakh. -Taymyr-Indoch.-China-Japan NE.USSR) - Australia(Queensl.-New S.Wales); U.Miss.(Meramec.), N.Am.( ?Ore.-Alaska
Age Range
Beginning Stage in Treatise Usage:
L.Carb.(Visean)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
0
Beginning Date:
346.73
Ending Stage in Treatise Usage:
U.Carb.(Namur.)
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
48.4
Ending Date:
319.4
Description
Cerioid; increase lateral; corallites with columella thinly lenticular in transverse section, continuous with both counter and cardinal septa or with counter septum only; other major septa may be connected with columella by septal crests on upper surfaces of tabulae; minor septa short to long, dissepimentarium normally concentric, lonsdaleoid dissepiments rare to absent; tabular floors conical, tabulae complete or incomplete when tabellae are commonly in only indistinctly bounded axial and periaxial zones; diphymorphic corallites may occur In which columella fails and tabulae become domed or flat.
References
Fleming, John, 1828, A history of British animals: xxiii +565 p., Bell \& Bradfute (Edinburgh).
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Lithostrotionina
Family:
Lithostrotionidae
Subfamily:
Lithostrotioninae
Formal Genus Name and Reference:
Lithostrotion FLEMING, 1828m o, 508
Type Species:
L. striatum; SD ICZN, Opin. 117; +I870.l4.370, missing from FLEMING Coil., RSM, Edinburgh; lectotype by ?THOMSON, 1887, p. 377 and KATO, 1971, p. 2; L.Carb., Brit. I.
Images
(Click to enlarge in a new window)
Fig. 248,2a. *L. striatllm, lectotype, L.Carb., Brit. 1.; transv. sec., X 1.9 (Thomson, 1887). --Fig. 248,2b-d. L. araehnoidellm (McCoY), lectotype, Eng., Derbyshire; bod, transv., long. secs., X1.9 (Hill, n). --Fig. 248,2e,f L. flemingi (McCoY), lectotype, Eng., Derbyshire; e,!, transv., long. secs., X1.9 (Hill, n).
Synonyms
Lithostrotium, Nemaphyllum, Lasmocyathus, Lithostrocion, Nematophyllum, Lithostrontion, Lithostrocian, Cystistrotion, ?Cionodendron
Geographic Distribution
Eu. (Brit.I.-France-Belg.-Ger.-Pol.-USSR)-N. Afr. (W. Sahara-Alg.)-Asia (Kazakh. -Taymyr-Indoch.-China-Japan NE.USSR) - Australia(Queensl.-New S.Wales); U.Miss.(Meramec.), N.Am.( ?Ore.-Alaska
Age Range
Beginning Stage in Treatise Usage:
L.Carb.(Visean)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
0
Beginning Date:
346.73
Ending Stage in Treatise Usage:
U.Carb.(Namur.)
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
48.4
Ending Date:
319.4
Description
Cerioid; increase lateral; corallites with columella thinly lenticular in transverse section, continuous with both counter and cardinal septa or with counter septum only; other major septa may be connected with columella by septal crests on upper surfaces of tabulae; minor septa short to long, dissepimentarium normally concentric, lonsdaleoid dissepiments rare to absent; tabular floors conical, tabulae complete or incomplete when tabellae are commonly in only indistinctly bounded axial and periaxial zones; diphymorphic corallites may occur In which columella fails and tabulae become domed or flat.
References
Fleming, John, 1828, A history of British animals: xxiii +565 p., Bell \& Bradfute (Edinburgh).