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Ferganoceras

Classification

    Phylum:  
Mollusca
    Class:  
Cephalopoda
    Subclass:  
Ammonoidea
    Order:  
Goniatitida
    Suborder:  
Goniatitina
    Superfamily:  
Neoglyphioceratoidea
    Family:  
Ferganoceratidae
    Formal Genus Name and Reference:  
Ferganoceras LIBROVICH, 1957, p. 253
    Type Species:  
F. elegans LIBROVICH, 1957, p. 254, OD


Images

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Fossil Image
Fig. 42, 1a-c. * F. elegans, Dombar Hills, South Urals, Kazakhstan, a-b, side view, PIN 455/6231, X 1.5, c, suture, PIN 455/6158, whorl height at 8.2 mm , whorl width 8.4 mm, X 3 (Ruzhentsev & Bogoslovskaia, 1971).


Synonyms

Ruddelites


Geographic Distribution

France, Algeria, China (Guangxi), Kazakhstan (South Urals), Uzbekistan (Fergana, Kyzylkumi, Tian Shan), USA (Arkansas)


Age Range

    Beginning Stage in Treatise Usage:  
Mississippian (upper Visean)
    Beginning International Stage:  
Visean
    Fraction Up In Beginning Stage:  
66
    Beginning Date:  
335.91
    Ending Stage in Treatise Usage:  
Mississippian (upper Visean)
    Ending International Stage:  
Visean
    Fraction Up In Ending Stage:  
100
    Ending Date:  
330.34


Description

Conch form discoidal, moderately involute, umbilicus rather narrow. Sculpture consisting of faint growth lines with ventral and lateral sinus, crossing longitudinal lirae and ventrolateral grooves. Suture as in Neoglyphioceras.




References



Museum or Author Information

Ruzhentsev & Bogoslovskaia, 1971