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Orthotichia

Classification

    Phylum:  
Brachiopoda
    Subphylum:  
Rhynchonelliformea
    Class:  
Rhynchonellata
    Order:  
Orthida
    Suborder:  
Dalmanellidina
    Superfamily:  
Enteletoidea
    Family:  
Schizophoriidae
    Formal Genus Name and Reference:  
Orthotichia Hall & CLARKE, 1892, p. 213
    Type Species:  
Orthis? morganiana DERBY, 1874, p. 29, OD


Images

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Fossil Image
Fig. 615, 3a-j. O. kozlowskii King, middle Permian, Texas, a-e, ventral, dorsal, anterior, posterior, lateral views of conjoined valves, x1, f , g, normal, tilted views of dorsal interior, X, h, ventral interior, X2, i, posterior view of conjoined valves, X2, j, lateral view of conjoined valves, X2 (Cooper & Grant, 1976).


Synonyms

Orthotichina


Geographic Distribution

widespread


Age Range

    Beginning Stage in Treatise Usage:  
Upper Carboniferous (Namurian)
    Beginning International Stage:  
Serpukhovian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
330.34
    Ending Stage in Treatise Usage:  
Upper Permian (Tatarian)
    Ending International Stage:  
Wuchiapingian
    Fraction Up In Ending Stage:  
40
    Ending Date:  
257.43


Description

Similar to Schizophoria but more finely costellate with strong dental plates extending forward, as high ridges, to in front of muscle field together with well-developed ventral median septum




References



Museum or Author Information

Cooper & Grant, 1976