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Platygoniatites

Classification

    Phylum:  
Mollusca
    Class:  
Cephalopoda
    Order:  
Goniatitida
    Superfamily:  
Goniatitoidea
    Family:  
Delepinoceratidae
    Formal Genus Name and Reference:  
Platygoniatites RUZHENTSEV, 1956a, p. 158
    Type Species:  
P. molaris, OD


Images

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Fossil ImageFossil Image
Fig. 34, 2a-f. *P. molaris, Dombar Hills, South Urals, Kazakhstan, lower Serpukhovian, a-b, PIN 455/210, X 1, c-d, PIN 455/212, X 1, e, holotype, suture, PIN 455/209, whorl height at 31.5 , whorl width 25 mm, X 1 (Ruzhentsev & Bogoslovskaia, 1971), f, cross section, Dombar Hills, PIN 455/214, X 2 (Ruzhentsev, 1956a)., Fig. 35, 2a. *P. karpinskii, Chumaza River, South Urals, Bashkortostan, lower Bashkirian, Russia, whorl height at 8 mm , whorl width 10.5 mm , PIN 455/28786, X 4.3 (Ruzhentsev & Bogoslovskaia, 1978).


Synonyms

Altayceras


Geographic Distribution

Spain, Portugal, Russia (Novaia Zemlia), Russia and Kazakhstan (South Urals), China (Guangxi, Ningxia, Xinjiang), Tajikistan (Darvaz), USA (Nevada)


Age Range

    Beginning Stage in Treatise Usage:  
Mississippian (uppermost Visean)
    Beginning International Stage:  
Visean
    Fraction Up In Beginning Stage:  
83
    Beginning Date:  
333.13
    Ending Stage in Treatise Usage:  
Mississippian (Serpukhovian)
    Ending International Stage:  
Serpukhovian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
323.4


Description

Sides of ventral and adventitious lobes with tendency toward processes, but not yet tridentate, Some forms with triangular coiling on immature stages




References



Museum or Author Information

Ruzhentsev & Bogoslovskaia, 1971, Ruzhentsev, 1956, Ruzhentsev & Bogoslovskaia, 1978