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Marcia
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Veneracea (Venus clams)
Family:
Veneridae
Subfamily:
Tapetinae
Formal Genus Name and Reference:
Marcia H.ADAMS & A.ADAMS, 1857
Type Species:
[*"Venus pinguis CHEMNITZ" (nonbinom.) (=*V. opima GMELlN, 1791); SD KOBELT, 1881]
Images
(Click to enlarge in a new window)
Synonyms
Hemitapes, Levimarcia
Geographic Distribution
N.Am.-Afr.-E.Indies-Australia-Eu.
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
Ovate-cordate, inflated, smooth, lunule convex, escutcheon depressed but not sharply delimited, cardinal teeth radiating, 1, 2b, 3b bifid, pallial sinus oval, horizontal
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Veneracea (Venus clams)
Family:
Veneridae
Subfamily:
Tapetinae
Formal Genus Name and Reference:
Marcia H.ADAMS & A.ADAMS, 1857
Type Species:
[*"Venus pinguis CHEMNITZ" (nonbinom.) (=*V. opima GMELlN, 1791); SD KOBELT, 1881]
Images
(Click to enlarge in a new window)Synonyms
Hemitapes, Levimarcia
Geographic Distribution
N.Am.-Afr.-E.Indies-Australia-Eu.
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
Ovate-cordate, inflated, smooth, lunule convex, escutcheon depressed but not sharply delimited, cardinal teeth radiating, 1, 2b, 3b bifid, pallial sinus oval, horizontal