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Schellwienella

Classification

    Phylum:  
Brachiopoda
    Class:  
Strophomenata
    Order:  
Orthotetida
    Superfamily:  
Orthotetoidea
    Family:  
Pulsiidae
    Formal Genus Name and Reference:  
Schellwienella I. THOMAS, 1910, p. 92
    Type Species:  
Spirifera crenistria PHILLIPS, 1836, pl. 216, OD


Images

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Fossil Image
Fig. 472, 2a-c. *S. crenistria (Phillips), Viséan, Lancashire, England, lectotype, BMNH B19675, dorsal, ventral, posterior views of shell, XI (new)., ——Fig. 472, 2d, e. S. radialis (Phillips), Asbian, Fermanagh, Ireland, dorsal valve posterior, dorsal valve interior, x1.3$ (Brunton, 1968).


Synonyms

Carlopsina


Geographic Distribution

cosmopolitan


Age Range

    Beginning Stage in Treatise Usage:  
Middle Devonian
    Beginning International Stage:  
Eifelian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
394.3
    Ending Stage in Treatise Usage:  
Lower Carboniferous
    Ending International Stage:  
Serpukhovian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
323.4


Description

Similar to Pulsia but commonly gently uniplicate with concentric fila forming serrations along crests of parvicostellae, dental plates short, divergent posteriorly, containing impressed, flabellate ventral muscle scars divided by low myophragm, socket ridges short, recurved.




References



Museum or Author Information

Brunton, 1968