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Placuna
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Anomiacea
Family:
Anomiidae
Formal Genus Name and Reference:
Placuna LIGHTFOOT, 1786
Type Species:
Anomia placenta LINNE, 1758; SD SCHMIDT, 1818]
Images
(Click to enlarge in a new window)
Synonyms
Placenta, Ephippium, Sellaria, Placunema
Geographic Distribution
Eu.IndoPac.-Asia-N.Afr.
Age Range
Beginning Stage in Treatise Usage:
Eoc.
Beginning International Stage:
Ypresian
Fraction Up In Beginning Stage:
0
Beginning Date:
56
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Outline of shell regular!y orbicular to saddleshaped, mostly compressed; resilium buttressed by long ridges or crura; not sessile.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Anomiacea
Family:
Anomiidae
Formal Genus Name and Reference:
Placuna LIGHTFOOT, 1786
Type Species:
Anomia placenta LINNE, 1758; SD SCHMIDT, 1818]
Images
(Click to enlarge in a new window) Synonyms
Placenta, Ephippium, Sellaria, Placunema
Geographic Distribution
Eu.IndoPac.-Asia-N.Afr.
Age Range
Beginning Stage in Treatise Usage:
Eoc.
Beginning International Stage:
Ypresian
Fraction Up In Beginning Stage:
0
Beginning Date:
56
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Outline of shell regular!y orbicular to saddleshaped, mostly compressed; resilium buttressed by long ridges or crura; not sessile.