Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Arca
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Arcoida
Superfamily:
Arcacea
Family:
Arcidae
Subfamily:
Arcinae
Formal Genus Name and Reference:
Arca LINNÉ, 1758
Type Species:
A. noae ; SD SCHMIDT, 1818 (ICZN Opinion 189)
Images
(Click to enlarge in a new window)
Fig. C2,3. * A. (A.) noae, Rec., Medit.; 3a, RVext., XO.85; 3b, RV int., X1.3 (Newell, n).
Synonyms
Daphne, Navicula, Byssoarca, Cibota, Areoptera, Mesoeibota
Geographic Distribution
Age Range
Beginning Stage in Treatise Usage:
M. Jur.
Beginning International Stage:
Aalenian
Fraction Up In Beginning Stage:
0
Beginning Date:
174.7
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Elongate, subtrapezoidal to subrectangu1ar, very inequilateral, commonly expanded or auriculate posteriorly, posterior umbonal carina prominent; cardinal area broad, covered throughout by ligament; dental series long and nearly straight; surface sculpture radial, fine.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Arcoida
Superfamily:
Arcacea
Family:
Arcidae
Subfamily:
Arcinae
Formal Genus Name and Reference:
Arca LINNÉ, 1758
Type Species:
A. noae ; SD SCHMIDT, 1818 (ICZN Opinion 189)
Images
(Click to enlarge in a new window)
Fig. C2,3. * A. (A.) noae, Rec., Medit.; 3a, RVext., XO.85; 3b, RV int., X1.3 (Newell, n).
Synonyms
Daphne, Navicula, Byssoarca, Cibota, Areoptera, Mesoeibota
Geographic Distribution
Age Range
Beginning Stage in Treatise Usage:
M. Jur.
Beginning International Stage:
Aalenian
Fraction Up In Beginning Stage:
0
Beginning Date:
174.7
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Elongate, subtrapezoidal to subrectangu1ar, very inequilateral, commonly expanded or auriculate posteriorly, posterior umbonal carina prominent; cardinal area broad, covered throughout by ligament; dental series long and nearly straight; surface sculpture radial, fine.