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Orbignyella

Classification

    Phylum:  
Bryozoa
    Subphylum:  
Ectoprocta
    Class:  
Gymnolaemata
    Order:  
Trepostomata
    Suborder:  
Amalgamata
    Family:  
Monticuliporidae
    Formal Genus Name and Reference:  
Orbignyella ULR.-B., 1904
    Type Species:  
O. sublamellosa


Images

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Fossil Image
Fig. 56, 3. *O. sublamellosa, Blkriv., Tenn., 3a, b, tang. secs., x25, x50, 3 c, long. sec., x25 (223).


Synonyms



Geographic Distribution



Age Range

    Beginning Stage in Treatise Usage:  
Ord.
    Beginning International Stage:  
Tremadocian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
486.85
    Ending Stage in Treatise Usage:  
Ord.
    Ending International Stage:  
Hirnantian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
443.07


Description

Lamellate, Zooecia angular, with sharply defined walls and curved diaphragms, Acanthopores well developed but mesopores lacking




References

Ptychocladia Ulr.-B., 1904 (foraminifer), Penn., Ill.


Museum or Author Information