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Gervillia

Classification

    Phylum:  
Mollusca
    Class:  
Bivalvia
    Subclass:  
Pteriomorphia
    Order:  
Pterioida
    Suborder:  
Pteriina
    Superfamily:  
Pteriacea
    Family:  
Bakevelliidae
    Formal Genus Name and Reference:  
Gervillia DEFRANCE, 1820, p. 502
    Type Species:  
G. solenoidea (sic), SM DEFRANCE, 1824, p. 316


Images

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Synonyms



Geographic Distribution

cosmop.


Age Range

    Beginning Stage in Treatise Usage:  
U.Trias.
    Beginning International Stage:  
Carnian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
237
    Ending Stage in Treatise Usage:  
U.Cret.
    Ending International Stage:  
Maastrichtian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
66.04


Description

Medium-sized, longitudinally elongated, narrow, ensiform, slightly curved, scarcely oblique, with terminal beaks and in some specimens rostrum-like anteroventral projection above which is wide gape of margins, posterior wing short and obtuse




References



Museum or Author Information