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Puanospirifer

Classification

    Phylum:  
Brachiopoda
    Class:  
Rhynchonellata
    Order:  
Spiriferida
    Superfamily:  
Reticularioidea
    Family:  
Reticulariidae
    Formal Genus Name and Reference:  
Puanospirifer JIANG in XIAN & JIANG, 1978, p. 329
    Type Species:  
P. guanziyaoensis; OD]


Images

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Fossil Image
Fig. 1234, 3a–b. *P. guanziyaoensis, Guizhou; dorsal, ventral views, ×0.7 (Xian & Jiang, 1978).——Fig. 1234, 3c–e. P. transversus J IANG, Guizhou; anterior, posterior, lateral views, ×1 (Xian & Jiang, 1978).


Synonyms

Deltospirifer


Geographic Distribution

southern China.


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:  
Lower Devonian (Emsian)
    Ending International Stage:  
Emsian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
394.3


Description

Medium size, triangular in outline; flanks smooth or with weak plications; microornament with marginal spines; short dental plates and ventral apical thickening; crural plates lacking.




References



Museum or Author Information