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Cystiphylloides

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Cystiphyllida
    Family:  
Cystiphyllidae
    Formal Genus Name and Reference:  
Cystiphylloides CHAPMAN, 1893, p. 46
    Type Species:  
Cystiphyllum aggregatum BILLINGS, 1859b, p. 137; tnot traced, GSC, Ottawa (in absence of monotype and exact topotypes, species is interpreted on specimen figured in LAMBE, 1901, pI. 18, fig. 3, GSC6331, Ottawa, ?Bois Blanc F., Lot 6, concession 13, Walpole, Ont.)


Images

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Synonyms



Geographic Distribution

cosmop.


Age Range

    Beginning Stage in Treatise Usage:  
L.Dev.
    Beginning International Stage:  
Lochkovian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
419
    Ending Stage in Treatise Usage:  
M.Dev.
    Ending International Stage:  
Givetian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
378.9


Description

Predominantly solitary, a few species phaceloid or subcerioid with peripheral increase, septa represented by spinelike trabeculae, isolated or in septal combs, commonly based in sclerocones and not extending through successive dissepiments or tabellae, laminar septal segments and peripheral arched crossbar plates not developed, sclerocones more pronounced in early stages and commonly strongest in axial parts, cardinal fossula may be evident as deepening in tabularial floors, nature of ambicounter septal loculi seldom apparent




References



Museum or Author Information