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Lophophyllidium

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Plerophyllina
    Family:  
Lophophyllidae
    Formal Genus Name and Reference:  
Lophophyllidium GRABAU, 1928, p. 98
    Type Species:  
Cyathaxonia prolifera MCCHESNEY, 1860, p. 75, OD; +neotype, W46064a (?or 4064a), ISGS, Urbana; by JEFFORDS, 1942, p.219, probably lost, fide FEDOROWSKI, 1974a, p. 442


Images

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Fossil Image
Fig. 219,4a-d. *L. prolifcrum (Mc-CHESNEY), neotype, Penn. (Missour.), Ill., near Springfield; a-c, transv., d, long. sees., X3.0 (Jeffords, 1942). --Fig. 219,4e,f. ?L. pavlovi (FOMICHEV), holotype; e,f, transv. sees., X3.0 (Fornichev, 1953a). --Fig. 219,4g-i. L. cambodgense (FONTAINE); g,h, holotype, transv. sees., X3.3, X9.0; i, another specimen, Pnom Takream, long. sec., X3.0 (Fontaine, 1961).


Synonyms

Sinophyllum, ?Malonophyllum, ?Agarikophyllum, Agaricophyllum, ? Gerthophyllum, Khmerophyllum


Geographic Distribution

N.Am.(Ill.-Ark.-Okla.-Kans.-Ohio-N.Mex.-Texas-Alaska-C. Am.-Guat.)-S.Am.(Peru -Venez.); U. Carb.-Perm., Eu. (Spain-USSR-Aus.)-W. Australia-Asia(China-Japan Viet Nam-Camb.-Burma- Iran)


Age Range

    Beginning Stage in Treatise Usage:  
Penn.
    Beginning International Stage:  
Bashkirian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
323.4
    Ending Stage in Treatise Usage:  
Perm.
    Ending International Stage:  
Changhsingian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
251.9


Description

Solitary, columella lathlike and without radiating septal lamellae, continuous with counter septum except in late stages and in calice, where it projects, cardinal septum short except in earliest stages, in open fossula to which younger septa of cardinal quadrants are pinnate, position of fossula variable in type species, commonly on concave side, other major septa subequal and commonly rhopaloid, in late stages withdrawn from axis, in early stages septa are thickened, and alar, counter-lateral, and metasepta are joined to each other and to columella, alar fossulae are prominent, cardinal septum is short in large fossula, and counter septum long, minor septa rudimentary or short, tabulae declined from columella, no dissepiments [see also FEDOROWSKI, 1974a, p. 441, and FLiiGEL, 1972, p. 74].




References



Museum or Author Information

Jeffords, 1947