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Myalina
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Ambonychiacea
Family:
Myalinidae
Subfamily:
Marine types
Formal Genus Name and Reference:
Myalina de KONINCK, 1842
Type Species:
M. goldfussiana
Images
(Click to enlarge in a new window)
Fig. C28,5a. M. (M.) copE1 (Whitfield), L. Perm.(Moran), USA(Tex.), LV ext., X0.7 (666), -- Fig. C28,5b. *M. (M.) goldfussiana, L.Carb.(Visean), Belg., LV int. showing muscle marks and dental socket, X1 (666)
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
L.Miss.
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
U.Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Mytiliform shells with nearly terminal beaks, generally unornamented, surface of LV in some species roughened by prominent growth lamellae, RV less convex and commonly slightly smaller than LV, umbonal deck lacking
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Ambonychiacea
Family:
Myalinidae
Subfamily:
Marine types
Formal Genus Name and Reference:
Myalina de KONINCK, 1842
Type Species:
M. goldfussiana
Images
(Click to enlarge in a new window)
Fig. C28,5a. M. (M.) copE1 (Whitfield), L. Perm.(Moran), USA(Tex.), LV ext., X0.7 (666), -- Fig. C28,5b. *M. (M.) goldfussiana, L.Carb.(Visean), Belg., LV int. showing muscle marks and dental socket, X1 (666)
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
L.Miss.
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
U.Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Mytiliform shells with nearly terminal beaks, generally unornamented, surface of LV in some species roughened by prominent growth lamellae, RV less convex and commonly slightly smaller than LV, umbonal deck lacking