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Bifariostroma

Classification

    Phylum:  
Porifera
    Class:  
Stromatoporoidea
    Order:  
Actinostromatida
    Family:  
Actinostromatidae
    Formal Genus Name and Reference:  
Bifariostroma KHALFINA, 1968a, p. 149
    Type Species:  
Actinostroma bifarium NICHOLSON, 1886b, p. 231, OD


Images

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Fossil Image
Fig. 426, 1 a-b. *B. bifarium (Nicholson), lectotype, Givetian, Büchel bei Bensberg, PaffrathMulde, Germany, NHM P5639, a, longitudinal section, Nicholson slide 165c, apparent cellules in pillars and some colliculi represent diagenetic alteration of original compact microstructure, b, tangential section, Nicholson slide 165b, hexactinellid pattern best developed in center to lower center of figure, X10 (Stock, 2012).


Synonyms



Geographic Distribution

Austria, Spain, Emsian, Italy, Middle Devonian, Belgium, Spain, Uzbekistan, Eifelian, Belgium, China (Guangxi, Sichuan), Czech Republic, France, Poland, Germany, Givetian, Afghanistan, Belgium, Czech Republic, Poland, Russia (Timan), Frasnian


Age Range

    Beginning Stage in Treatise Usage:  
Lower Devonian (Emsian)
    Beginning International Stage:  
Emsian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
410.51
    Ending Stage in Treatise Usage:  
Upper Devonian (Frasnian)
    Ending International Stage:  
Frasnian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
371.1


Description

Pillars mix of two types, some long, continuous, and thick, others short and thin, colliculi horizontally aligned




References

Khalfina, V. K. 1968a. O novykh rodakh stromatoporoidei iz devonskikh otlozhenii IUZ okrainy


Museum or Author Information

Stock, 2012