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Polymesoda
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Corbiculacea
Family:
Corbiculidae (basket clams)
Formal Genus Name and Reference:
Polymesoda RAFINESQUE, 1828
Type Species:
Cyclas caroliniana Bosc. 1801, OD
Images
(Click to enlarge in a new window)
Fig. E140,4. "*P. (P.) caroliniana (Bosc), USA(Fla.); 4a,b, RV ext., LV int., X1 (Bose, 1801)
Synonyms
Egetaria, Cyprinella, Diodus, Leptosiphon, Americana
Geographic Distribution
C.Am.-Japan-S.Am.-Carib.
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
Medium-sized to large, beaks prominent, inturned, inequilateral, cardinal teeth 3, LV with 1 anterior and 1 long posterior lateral against 2 in RV
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Corbiculacea
Family:
Corbiculidae (basket clams)
Formal Genus Name and Reference:
Polymesoda RAFINESQUE, 1828
Type Species:
Cyclas caroliniana Bosc. 1801, OD
Images
(Click to enlarge in a new window)
Fig. E140,4. "*P. (P.) caroliniana (Bosc), USA(Fla.); 4a,b, RV ext., LV int., X1 (Bose, 1801)
Synonyms
Egetaria, Cyprinella, Diodus, Leptosiphon, Americana
Geographic Distribution
C.Am.-Japan-S.Am.-Carib.
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
Medium-sized to large, beaks prominent, inturned, inequilateral, cardinal teeth 3, LV with 1 anterior and 1 long posterior lateral against 2 in RV