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Mestognathus

Classification

    Phylum:  
Conodonta
    Class:  
Conodonta
    Order:  
Conodontophorida
    Superfamily:  
Conodontophorida - SuperFamily Unknown
    Family:  
Mestognathidae
    Formal Genus Name and Reference:  
Mestognathus BISCHOFF, 1957, p. 36
    Type Species:  
M. beckmanni, OD


Images

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Fossil Image
Fig. 117, 3. *M. beckmanni, (Dinant.), Eu. (Wales), 3a-c, lat., upper, and lower views, X245 (Rhodes, Austin, & Druce, 1969).


Synonyms



Geographic Distribution

N.Am. (Can.), Eu.


Age Range

    Beginning Stage in Treatise Usage:  
U.Miss. (Visean)
    Beginning International Stage:  
Visean
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
346.73
    Ending Stage in Treatise Usage:  
L.Penn. (Namur.)
    Ending International Stage:  
Bashkirian
    Fraction Up In Ending Stage:  
48.4
    Ending Date:  
319.4


Description

Pectiniform element planate, short free blade on lateral margin, highest at posterior, carina present and distinct in most specimens, transverse ridges on posterior platform, small basal pit and groove on lower surface. [The element resembles the pectiniform Pa element of Cavusgnathus, but the small basal cavity is distinctive.]




References

Bischoff, Günther, 1957, Die Conodonten-Stratigraphie des rheno-herzynischen Unterkarbons mit Berücksichtigung der Wocklumeria-Stufe und der Devon/Karbon-Grenze: Abh. Hess. Landesamtes Bodenforsch., no. 19, p. 1-64, pl. 1-6.


Museum or Author Information

Rhodes, Austin, & Druce, 1969