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Vaugonia
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Trigonioida
Superfamily:
Trigoniacea
Family:
Trigoniidae
Formal Genus Name and Reference:
Vaugonia CRICKMAY, 1930, p. 53
Type Species:
V. veronica, OD
Images
(Click to enlarge in a new window)
Fig. D74, 1a. *V. (V.) veronica, M.Jur., B.C., RV ext., X1 (Crickmay, 1930); Fig. D74, 1b. V. (V.) literata (Young & Bird), L.Jur.(U.Lias.), Eng., RV ext., X1 (554)
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
L.Jur.(L.Lias.)
Beginning International Stage:
Hettangian
Fraction Up In Beginning Stage:
0
Beginning Date:
201.36
Ending Stage in Treatise Usage:
U.Jur.(Portland.)
Ending International Stage:
Berriasian
Fraction Up In Ending Stage:
25
Ending Date:
141.75
Description
Trigonally ovate, short, escutcheon and marginal carinae well defined, area bipartite, transversely ridged, simple or tuberculate V-shaped costae present on flank up to varying stage of growth, angle of V's situated in relatively posterior position, remainder of flank with rather irregular costae
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Trigonioida
Superfamily:
Trigoniacea
Family:
Trigoniidae
Formal Genus Name and Reference:
Vaugonia CRICKMAY, 1930, p. 53
Type Species:
V. veronica, OD
Images
(Click to enlarge in a new window)
Fig. D74, 1a. *V. (V.) veronica, M.Jur., B.C., RV ext., X1 (Crickmay, 1930); Fig. D74, 1b. V. (V.) literata (Young & Bird), L.Jur.(U.Lias.), Eng., RV ext., X1 (554)
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
L.Jur.(L.Lias.)
Beginning International Stage:
Hettangian
Fraction Up In Beginning Stage:
0
Beginning Date:
201.36
Ending Stage in Treatise Usage:
U.Jur.(Portland.)
Ending International Stage:
Berriasian
Fraction Up In Ending Stage:
25
Ending Date:
141.75
Description
Trigonally ovate, short, escutcheon and marginal carinae well defined, area bipartite, transversely ridged, simple or tuberculate V-shaped costae present on flank up to varying stage of growth, angle of V's situated in relatively posterior position, remainder of flank with rather irregular costae