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Cimitaria
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Anomalodesmata
Order:
Pholadomyoida
Superfamily:
Pholadomyacea
Family:
Grammysiidae
Formal Genus Name and Reference:
Cimitaria Hall & WHITFIELD, 1869, p. 66
Type Species:
Cypricardites recurvus Conrad, 1842, SD HALL, 1885
Images
(Click to enlarge in a new window)
Fig. F3,7. *C. recurva (Conrad), M.Dev.(Hamilton.), N.Y., 7a,b, cardinal view and RV ext., X0.5 (379)
Synonyms
Geographic Distribution
E.USA
Age Range
Beginning Stage in Treatise Usage:
M. Dev.
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
U.Dev.
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Shell elongate, subrectangular, falcate or trapezoid, anterior end short and rounded, posterior end elongate, truncate, umbonal ridge angular and commonly strongly defined, surface marked by strong concentric lines of growth and by fine radial costellae, lateral sulcus extends slightly backward from umbones to basal margin, hinge marked by narrow, elongate ligament groove, lunule and escutcheon well defined, internal features and hinge unknown. [COOPER, 1931.]
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Anomalodesmata
Order:
Pholadomyoida
Superfamily:
Pholadomyacea
Family:
Grammysiidae
Formal Genus Name and Reference:
Cimitaria Hall & WHITFIELD, 1869, p. 66
Type Species:
Cypricardites recurvus Conrad, 1842, SD HALL, 1885
Images
(Click to enlarge in a new window)
Fig. F3,7. *C. recurva (Conrad), M.Dev.(Hamilton.), N.Y., 7a,b, cardinal view and RV ext., X0.5 (379)
Synonyms
Geographic Distribution
E.USA
Age Range
Beginning Stage in Treatise Usage:
M. Dev.
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
U.Dev.
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Shell elongate, subrectangular, falcate or trapezoid, anterior end short and rounded, posterior end elongate, truncate, umbonal ridge angular and commonly strongly defined, surface marked by strong concentric lines of growth and by fine radial costellae, lateral sulcus extends slightly backward from umbones to basal margin, hinge marked by narrow, elongate ligament groove, lunule and escutcheon well defined, internal features and hinge unknown. [COOPER, 1931.]