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Commutia

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Plerophyllina
    Family:  
Pentaphyllidae
    Subfamily:  
Commutiinae
    Formal Genus Name and Reference:  
Commutia FEDOROWSKI, 1973, p. 118
    Type Species:  
C. szulczewskii, OD, †Tc-6 / 33, PZI, Poznan


Images

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Fossil Image
Fig. 218,2a-d. *C. szulczewskii, Wocklumeria or Gattendorfia Stage, Holy Cross Mts., Dalnia, a, b, holotype, transv. secs., X5, c, d, another specimen, transv., long. secs., X5 (Fedorowski, 1973).


Synonyms



Geographic Distribution

Eu.(Pol.)


Age Range

    Beginning Stage in Treatise Usage:  
U.Dev.(Famenn.)
    Beginning International Stage:  
Famennian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
371.1
    Ending Stage in Treatise Usage:  
U.Dev.(Famenn.)
    Ending International Stage:  
Famennian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
359.3


Description

Solitary, small, funnel-shaped, in late stages corallum expands sharply and axial ends of cardinal, alar, and counter-lateral protosepta, and in some a few metasepta, unite to form inner wall that may be impersistent, but counter septum and other metasepta are short, in early slender stages of corallum no aulos is present, and only five protosepta are visible, tabulae concave within aulos, declined abaxially in peripheral regions.




References

Fedorowski, Jerzy, , \& Goryanov [Gorianov], V. B., 1973, Redescription of tetracorals described by E. Eichwald in "Palaeontology of Russia": Acta Palaeontol. Polonica, v. 18, no. 1, p. 3-70, text-fig. 1-20, pl. 1-13.


Museum or Author Information

Fedorowski, 1973