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Diplophyllum

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Columnariina
    Family:  
Acervulariidae
    Formal Genus Name and Reference:  
Diplophyllum HALL, 1852a, p. 115
    Type Species:  
D. caespitosum; M; +I696:1, AMNH, New York; lectotype by OLIVER, 1963, p. G3


Images

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Fig. 167,3a-d. *D. caespitosum, Lockport doL, N.Y., Lockport; a,b, lectotype, transv., long. sees., X6.7; c,d, topotype, transv., long. sees., X6.7, X2.7 (Oliver, 1963).


Synonyms



Geographic Distribution

N.Am.(N.Y.)-Eu. (Gotl.)


Age Range

    Beginning Stage in Treatise Usage:  
M.Sil.
    Beginning International Stage:  
Sheinwoodian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
432.93
    Ending Stage in Treatise Usage:  
M.Sil.
    Ending International Stage:  
Homerian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
426.74


Description

Phaceloid, phacelocerioid, or cerioid; inner wall separating marginarium from tabularium, where major and minor septa thicken to contiguity; major septa may be long, or short and subequal to minor; septal trabeculae may diverge radially at inner wall so that narrow zone of longitudinally or even abaxially inclined trabeculae may be found on abaxial side of inner wall; tabularium wide, tabulae mostly complete, flat to gently arched; in marginarium flat plates cross interseptal loculi; increase commonly peripheral or lateral [see OLIVER, 1963, p. Gl].




References



Museum or Author Information