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Rotiphyllum

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Stereolasmatina
    Family:  
Actinophrentidae
    Subfamily:  
Actinophrentinae
    Formal Genus Name and Reference:  
Rotiphyllum HUDSON, 1942a, p. 257
    Type Species:  
Densiphyllum rushianum VAUGHAN, 1908, p. 459; OD; +TI0/1009, TC, Dublin


Images

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Fossil Image
Fig. 203,4a. *R. rushianum (VAUGHAN), L. Carb., Cyatllaxonia beds, Eire, Rush; transv. sec., X4 (Vaughan, 1906). --Fig. 203,4b-d. R. sokolotĀ·i (FOMICHEV), holotype; b,c, transv., d, long. sees., X3 (Fomichev, 1953a).


Synonyms

Centrocellulosum, Monophyllum


Geographic Distribution

Eu.(U.K.-Eire)-Asia(Kazakh.); U.Carb.(Moscov.), Eu.(Donbas).


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:  
L.Carb.(Visean)
    Ending International Stage:  
Visean
    Fraction Up In Ending Stage:  
100
    Ending Date:  
330.34


Description

Small, solitary, comute, fossula on convex side; major septa dilated, with extra thickening in inner third of their length, joined to form dense axial structure; counter septum longer than others and cardinal septum may withdraw from center of axial structure into which cardinal fossula may extend, narrowing adaxially; alar fossulae not marked; minor septa short; bases of septa dilated and in contact, forming narrow peripheral stereozone; tabulae conical; no dissepiments.




References



Museum or Author Information