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Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Lucinacea
Family:
Lucinidae
Subfamily:
Lucininae
Formal Genus Name and Reference:
Here GABB, 1866
Type Species:
Lucina (H.) richtofeni (=Lucina excavata Carpenter, 1857), SD STOLICZKA, 1871
Images
(Click to enlarge in a new window)
Fig. E3,1. *H. (H.) excavata (Carpenter), Mio., USA(Calif.), 1a, b, LV int., RV int., X2.25, 1c, LV ext., X1.5 (98, Gabb, 1869).
Synonyms
Geographic Distribution
W.Eu.-W.N. Am.-N.Afr.
Age Range
Beginning Stage in Treatise Usage:
Paleoc.
Beginning International Stage:
Danian
Fraction Up In Beginning Stage:
0
Beginning Date:
66.04
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Medium-sized to small, rounded, with weak anterior and posterior areas, concentric ribs tending to vanish, lunule deeply excavated, covering part of hinge, anterior scars somewhat short, attenuated, internal shell margin with minute denticles
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Lucinacea
Family:
Lucinidae
Subfamily:
Lucininae
Formal Genus Name and Reference:
Here GABB, 1866
Type Species:
Lucina (H.) richtofeni (=Lucina excavata Carpenter, 1857), SD STOLICZKA, 1871
Images
(Click to enlarge in a new window)
Fig. E3,1. *H. (H.) excavata (Carpenter), Mio., USA(Calif.), 1a, b, LV int., RV int., X2.25, 1c, LV ext., X1.5 (98, Gabb, 1869).
Synonyms
Geographic Distribution
W.Eu.-W.N. Am.-N.Afr.
Age Range
Beginning Stage in Treatise Usage:
Paleoc.
Beginning International Stage:
Danian
Fraction Up In Beginning Stage:
0
Beginning Date:
66.04
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Medium-sized to small, rounded, with weak anterior and posterior areas, concentric ribs tending to vanish, lunule deeply excavated, covering part of hinge, anterior scars somewhat short, attenuated, internal shell margin with minute denticles