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Zelolasma

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Columnariina
    Family:  
Disphyllidae
    Subfamily:  
Spongonariinae
    Formal Genus Name and Reference:  
Zelolasma PEDDER, 1964a, p. 364
    Type Species:  
Diphyphyllum gemmiforme ETHERIDGE, 1902, p. 253, OD, +F5171, AM, Sydney


Images

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Fig. 180,la,b. ·Z. gemmiforme (ETHERIDGE), Cavan Bluff Ls., New S. Wales, near Taemas Bridge, N. bank of Murrumbidgee R.; a,b, transv., long. sees., X3 (Hill, n; UQF45755, UQF49834).


Synonyms



Geographic Distribution

Australia(New S.Wales)-Asia(Tadzhik.)-Eu.(Urals)- ?N.Afr.(Alg.)


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:  
L.Dev.
    Ending International Stage:  
Emsian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
394.3


Description

Phaceloid or partly cerioid, with peripheral, parricidal increase, in some becoming quadripartite, major and minor septa subequal, of uniserial monacanths, smooth to weakly carinate, axial ends may be spinose in wide tabularium, dissepiments globose to rhomboid, variable In size, larger ones subhorizontally based; tabular floors gently sagging or horizontal or weakly convex; tabulae complete or incomplete.




References



Museum or Author Information