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Siphonodendron

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Lithostrotionina
    Family:  
Lithostrotionidae
    Subfamily:  
Lithostrotioninae
    Formal Genus Name and Reference:  
Siphonodendron MCCOY, 1849, p. 127, diagnosed and figured but no species named
    Type Species:  
S. aggregatum McCoy, 1851b, p. 108, SD Chi, 1931, p. 26, invalid nom. subst. pro Lithodendron pauciradialis McCov, 1844, p. 189, *, Griffith Coll., NM, Dublin, lectotype by HILL, 1938-1941, p. 169, L.Carb., Lower Limestone, Magheramore, Tobercurry, Co. Sligo, Eire


Images

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Fossil Image
Fig. 249,1a-c. * S. pauciradiale (McCov), lectotype, a,b, ext. views, X1, c, transv. sec., X2 (Hill, 1938-1941). --Fig. 249,1d,e. S.aggregatum, L.Carb., D2, Merionethshire, Corwen; d,e, transv., long. sees., X2 (Hill, n; A1996, SM, Cambridge). --Fig. 129,lf-h. ?S. intermedium (CHI), holotype; f-h, transv., long. sees., X3 (Chi, 1931).


Synonyms

Cystidendron, ?Stylostrotion


Geographic Distribution

Eu. (Brit. I.-Belg.-France-Ger.-Pol.-USSR)-N. Afr. (W. Sahara-Alg. )-Asia (Turkey-E. Urals-Kazakh.-Kuzbas - Tibet - China - Indoch. - Japan - Taymyr -NE.USSR)-Australia(Queensl.-New S.Wales), *. Miss.(Meramec.-Chester. ), N.Am. (E.USA-W.USA-W.Can.-Alaska), U.Carb., Eu.(USSR-Czech. )-Asia (China)


Age Range

    Beginning Stage in Treatise Usage:  
L.Carb.
    Beginning International Stage:  
Tournaisian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
359.3
    Ending Stage in Treatise Usage:  
U.Carb.(Namur.)
    Ending International Stage:  
Bashkirian
    Fraction Up In Ending Stage:  
48.4
    Ending Date:  
319.4


Description

Fasciculate, increase predominantly lateral, corallites with columella thinly lenticular in transverse section, continuous with both counter and cardinal septa or with counter septum only, major septa may be connected with columella by crests on upper surfaces of tabulae, minor septa short to long, tabular floors conical, tabulae complete or incomplete when tabellae are commonly in only indistinctly bounded axial and periaxial zones, dissepimentarium normally concentric, diphymorphic corallites in which columella fails and tabulae become domed or nearly flat may occur within normal coralla, cardinal fossula not distinct.




References



Museum or Author Information

Hill, 1938