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Apricardia
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Hippuritoida (rudists and relatives)
Superfamily:
Hippuritacea (rudists)
Family:
Requieniidae
Formal Genus Name and Reference:
Apricardia GUÉRANGER, 1853, p. 36
Type Species:
A. carinata, M
Images
(Click to enlarge in a new window)
Fig. E246,3. A. sp., diagram showing features of FV hinge, × 0.7 (252)
Synonyms
Geographic Distribution
Eu.-N.Afr.-E.Afr.-Syria-Mexico
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(Cenoman.)
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
U.Cret.(Senon.)
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
External shell form as in Toucasia, AV hinge unknown, posterior tooth of FV large, posterior muscle insertion in both valves on plate passing below cardinal platform, plate of FV small and oblique to valve surface
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Hippuritoida (rudists and relatives)
Superfamily:
Hippuritacea (rudists)
Family:
Requieniidae
Formal Genus Name and Reference:
Apricardia GUÉRANGER, 1853, p. 36
Type Species:
A. carinata, M
Images
(Click to enlarge in a new window)
Fig. E246,3. A. sp., diagram showing features of FV hinge, × 0.7 (252)
Synonyms
Geographic Distribution
Eu.-N.Afr.-E.Afr.-Syria-Mexico
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(Cenoman.)
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
U.Cret.(Senon.)
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
External shell form as in Toucasia, AV hinge unknown, posterior tooth of FV large, posterior muscle insertion in both valves on plate passing below cardinal platform, plate of FV small and oblique to valve surface