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Mactromya
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Lucinacea
Family:
Mactromyidae
Formal Genus Name and Reference:
Mactromya AGASSIZ, 1843
Type Species:
M. rugosa (=*Lutraria concentrica Münster in Goldfuss, 1840, SD HERRMANNSEN, 1847
Images
(Click to enlarge in a new window)
Fig. E15,11. *M. concentrica (Münster), U.Jur., Ger., LV ext., X1.25 (Chavan, n , after Goldfuss)
Synonyms
Geographic Distribution
Eu.-E.Afr.
Age Range
Beginning Stage in Treatise Usage:
Jur.(Bathon.)
Beginning International Stage:
Bathonian
Fraction Up In Beginning Stage:
0
Beginning Date:
168.17
Ending Stage in Treatise Usage:
Jur.(Portland.)
Ending International Stage:
Berriasian
Fraction Up In Ending Stage:
25
Ending Date:
141.75
Description
Transversely elliptical, nearly equilateral, with strong subequidistant concentric ribs, RV hinge with anterior thickening and shallow socket
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Lucinacea
Family:
Mactromyidae
Formal Genus Name and Reference:
Mactromya AGASSIZ, 1843
Type Species:
M. rugosa (=*Lutraria concentrica Münster in Goldfuss, 1840, SD HERRMANNSEN, 1847
Images
(Click to enlarge in a new window)
Fig. E15,11. *M. concentrica (Münster), U.Jur., Ger., LV ext., X1.25 (Chavan, n , after Goldfuss)
Synonyms
Geographic Distribution
Eu.-E.Afr.
Age Range
Beginning Stage in Treatise Usage:
Jur.(Bathon.)
Beginning International Stage:
Bathonian
Fraction Up In Beginning Stage:
0
Beginning Date:
168.17
Ending Stage in Treatise Usage:
Jur.(Portland.)
Ending International Stage:
Berriasian
Fraction Up In Ending Stage:
25
Ending Date:
141.75
Description
Transversely elliptical, nearly equilateral, with strong subequidistant concentric ribs, RV hinge with anterior thickening and shallow socket