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Filosina
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Corbiculacea
Family:
Corbiculidae (basket clams)
Formal Genus Name and Reference:
Filosina CASEY, 1955
Type Species:
F. gregaria, OD
Images
(Click to enlarge in a new window)
Fig. E140,14. *F. gregaria, L.Cret.(Wealden), Eng., 14a-c, slab, X1, RV and LV hinges, enl. (Casey)
Synonyms
Geographic Distribution
Eu.-Syria
Age Range
Beginning Stage in Treatise Usage:
L.Cret.(Wealde)
Beginning International Stage:
Valanginian
Fraction Up In Beginning Stage:
0
Beginning Date:
137.7
Ending Stage in Treatise Usage:
L.Cret.(Apt.)
Ending International Stage:
Aptian
Fraction Up In Ending Stage:
100
Ending Date:
113.2
Description
Trigonalovate or subrectangular, no lunule or escutcheon, lateral teeth finely striate, PII merged into margin, PIII wanting, pallial line truncate posteriorly but not sinuate
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:
Filosina CASEY, 1955
Type Species:
F. gregaria, OD
Images
(Click to enlarge in a new window)
Fig. E140,14. *F. gregaria, L.Cret.(Wealden), Eng., 14a-c, slab, X1, RV and LV hinges, enl. (Casey)
Synonyms
Geographic Distribution
Eu.-Syria
Age Range
Beginning Stage in Treatise Usage:
L.Cret.(Wealde)
Beginning International Stage:
Valanginian
Fraction Up In Beginning Stage:
0
Beginning Date:
137.7
Ending Stage in Treatise Usage:
L.Cret.(Apt.)
Ending International Stage:
Aptian
Fraction Up In Ending Stage:
100
Ending Date:
113.2
Description
Trigonalovate or subrectangular, no lunule or escutcheon, lateral teeth finely striate, PII merged into margin, PIII wanting, pallial line truncate posteriorly but not sinuate