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Trapezium
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Arcticacea
Family:
Trapeziidae
Formal Genus Name and Reference:
Trapezium Megerle von MÜHLFELD, 1811
Type Species:
T. perfectum (=Chama oblonga Linné, 1758), SD STEWART, 1930
Images
(Click to enlarge in a new window)
Fig. E132,9. *T. (T.) oblongum (Linné), Rec., E.Indies, 9a,b, LV ext., RV int., X1 (de Blainville, 1825).
Synonyms
Libitina, Cypricardia
Geographic Distribution
N.Am.-Eu.-IndoPac.-Ind.O.
Age Range
Beginning Stage in Treatise Usage:
Eoc.
Beginning International Stage:
Ypresian
Fraction Up In Beginning Stage:
0
Beginning Date:
56
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Oblong, solid, ligament external. Nestling in crevices.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Arcticacea
Family:
Trapeziidae
Formal Genus Name and Reference:
Trapezium Megerle von MÜHLFELD, 1811
Type Species:
T. perfectum (=Chama oblonga Linné, 1758), SD STEWART, 1930
Images
(Click to enlarge in a new window)
Fig. E132,9. *T. (T.) oblongum (Linné), Rec., E.Indies, 9a,b, LV ext., RV int., X1 (de Blainville, 1825).
Synonyms
Libitina, Cypricardia
Geographic Distribution
N.Am.-Eu.-IndoPac.-Ind.O.
Age Range
Beginning Stage in Treatise Usage:
Eoc.
Beginning International Stage:
Ypresian
Fraction Up In Beginning Stage:
0
Beginning Date:
56
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Oblong, solid, ligament external. Nestling in crevices.