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Ancyrodelloides

Classification

    Phylum:  
Conodonta
    Class:  
Conodonta
    Order:  
Conodontophorida
    Superfamily:  
Polygnathacea
    Family:  
Polygnathidae
    Formal Genus Name and Reference:  
Ancyrodelloides Bischoff & SANNEMANN, 1958, p. 91
    Type Species:  
A. trigonicus, OD


Images

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Fossil Image
Fig. 111, 7. *A. trigonicus, Tentaculitenkalk, Eu. (Ger.), Pa element, upper view, X17 (Bischoff & Sannemann, 1958)


Synonyms



Geographic Distribution

Eu., Asia, M.-N.Am. (Alaska)


Age Range

    Beginning Stage in Treatise Usage:  
L.Dev.
    Beginning International Stage:  
Lochkovian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
419
    Ending Stage in Treatise Usage:  
L.Dev.
    Ending International Stage:  
Emsian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
394.3


Description

Like Ancyrodella but upper platform surface of Pa element smooth adjacent to carina and secondary carinae. [Only Pa element is recognized.]




References

Bischoff, Günther, , & Sannemann, Dietrich, 1958, Unterdevonische Conodonten aus dem Frankenwald: Notizbl. Hess. Landesamtes Bordenforsch. Wiesbaden, v. 86, p. 87-110, pl. 12-15.


Museum or Author Information

Bischoff & Sannemann, 1958