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Pleramplexus

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Plerophyllina
    Family:  
Plerophyllidae
    Subfamily:  
Plerophyllinae
    Formal Genus Name and Reference:  
Pleramplexus SCHINDEWOLF, 1940, p. 401
    Type Species:  
P. similis, OD, +in Schindewolf Coll., ZGI, E. Berlin


Images

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Fossil Image
Fig. 214,5a-c. * P. similis, Basleo, a,b, holotype, transv. secs., X4, paratype, long. sec., X4 (Schindewolf, 1942)


Synonyms



Geographic Distribution

Asia(Timor-NW.Iran-Nakhi-chev.), Eu.(Greece)


Age Range

    Beginning Stage in Treatise Usage:  
U.Perm.
    Beginning International Stage:  
Wuchiapingian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
259.55
    Ending Stage in Treatise Usage:  
U.Perm.
    Ending International Stage:  
Changhsingian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
251.9


Description

Solitary, early stages first zaphrentoid, then plerophylloid, cardinal septum shortens early and in late stages all septa become thinner and less rhopaloid and withdraw from contact, leaving widening axial zone free of septa, tabulae commonly complete, declined from inner ends of septa to periphery and into shallow cardinal fosula, minor septa rudimentary to short, no dissepiments




References



Museum or Author Information

Schindewolf, 1942