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Huangophyllum

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Plerophyllina
    Family:  
Polycoeliidae
    Subfamily:  
Polycoeliinae
    Formal Genus Name and Reference:  
Huangophyllum TSENG, 1948, p. 3
    Type Species:  
H. symmetrictm, OD, 16942, not traced, ?Peking


Images

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Fossil Image
Fig. 211,1. *H. symmetricum, Maokou Ls.; a-d,e-j, series of transv. sees., 2 specimens, X3 (Tseng, 1948).


Synonyms



Geographic Distribution

Asia(Szechwan)


Age Range

    Beginning Stage in Treatise Usage:  
Perm.
    Beginning International Stage:  
Asselian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
298.89
    Ending Stage in Treatise Usage:  
Perm.
    Ending International Stage:  
Changhsingian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
251.9


Description

Solitary, curved trochoid, concave side cardinal; counter and alar septa longest, counter septum may be rhopaloid but does not form separate columella; cardinal septum short; major septa in all quadrants successively shorter with sequence of insertion, and pinnately arranged to cardinal and alar fossulae; axial ends of major septa of cardinal quadrants free, those of counter quadrants may be conjoined; no dissepiments; in early stages septa meet at axis.




References



Museum or Author Information