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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
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
(Click to enlarge in a new window)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