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Modiomorpha
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Modiomorphoida
Superfamily:
Modiomorphacea
Family:
Modiomorphidae
Formal Genus Name and Reference:
Modiomorpha Hall & WHITFIELD, 1869, p. 72
Type Species:
Pterinea concentrica Conrad, 1838, SD HALL, 1885
Images
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Synonyms
Geographic Distribution
M.Sil.-L.Perm.
Age Range
Beginning Stage in Treatise Usage:
M.Sil.
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
L.Perm.
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
Mesial ventral sinus and oblique preumbonal sulcus distinct, LV with 1 large wedge-shaped tooth, RV with corresponding socket, without laterals
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Modiomorphoida
Superfamily:
Modiomorphacea
Family:
Modiomorphidae
Formal Genus Name and Reference:
Modiomorpha Hall & WHITFIELD, 1869, p. 72
Type Species:
Pterinea concentrica Conrad, 1838, SD HALL, 1885
Images
(Click to enlarge in a new window)Synonyms
Geographic Distribution
M.Sil.-L.Perm.
Age Range
Beginning Stage in Treatise Usage:
M.Sil.
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
L.Perm.
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
Mesial ventral sinus and oblique preumbonal sulcus distinct, LV with 1 large wedge-shaped tooth, RV with corresponding socket, without laterals