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Chonetella

Classification

    Phylum:  
Brachiopoda
    Class:  
Strophomenata
    Order:  
Productida
    Superfamily:  
Productoidea
    Family:  
Productellidae
    Formal Genus Name and Reference:  
Chonetella WAAGEN, 1884, p. 613
    Type Species:  
Chonetella artiensis KROTOW, 1885, p. 275, OD


Images

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Fossil Image
Fig. 249, 3a-c. $* C$. artiensis (Krotow), Russia, Urals, ventral valve, ventral valve internal mold, dorsal valve interior, $\\mathbf{X}_{\\mathbf{3}}$ (Krotow, 1885).


Synonyms



Geographic Distribution

Pakistan, Salt Range


Age Range

    Beginning Stage in Treatise Usage:  
Lower Permian (Kungurian)
    Beginning International Stage:  
Kungurian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
283.3
    Ending Stage in Treatise Usage:  
Upper Permian (Capitanian)
    Ending International Stage:  
Capitanian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
259.55


Description

Shell small, highly concavoconvex with dorsal median fold, deep ventral sulcus, shell smooth with growth lines, spines developed, dorsal valve interior with several platelike septa formed from fused papillae, no median septum. Upper Carboniferous (Stephanian)-Permian (Kazanian): Europe, Asia.




References



Museum or Author Information

Krotow, 1885