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Langsonella
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pteriacea
Family:
Bakevelliidae
Formal Genus Name and Reference:
Langsonella PATTE, 1926, p. 139
Type Species:
Gervilleia (Cultriopsis) elongata Mansuy, 1919, p. 7 (non Gervillia elongata Portlock, 1843) ( = *Langsonella mansuyi COX, 1961, M
Images
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Synonyms
Geographic Distribution
Tonkin-Malaya
Age Range
Beginning Stage in Treatise Usage:
Trias.
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
Trias.
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Rather small, elongate, subcylindrical, not oblique, highly inequivalve, LV strongly convex, diagonally carinate, with broad, scarcely protruding umbonal region and large, indistinctly delimited anterior wing, dentition imperfectly known
References
Patte, Etienne, 1926, Études paléontologiques relatives à la géologie de l'est du Tonkin (Paléozoique et Trias): Serv. Géol. Indo-Chine, Bull., v. 15, pt. 1, 241 p., 12 pl.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pteriacea
Family:
Bakevelliidae
Formal Genus Name and Reference:
Langsonella PATTE, 1926, p. 139
Type Species:
Gervilleia (Cultriopsis) elongata Mansuy, 1919, p. 7 (non Gervillia elongata Portlock, 1843) ( = *Langsonella mansuyi COX, 1961, M
Images
(Click to enlarge in a new window)Synonyms
Geographic Distribution
Tonkin-Malaya
Age Range
Beginning Stage in Treatise Usage:
Trias.
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
Trias.
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Rather small, elongate, subcylindrical, not oblique, highly inequivalve, LV strongly convex, diagonally carinate, with broad, scarcely protruding umbonal region and large, indistinctly delimited anterior wing, dentition imperfectly known
References
Patte, Etienne, 1926, Études paléontologiques relatives à la géologie de l'est du Tonkin (Paléozoique et Trias): Serv. Géol. Indo-Chine, Bull., v. 15, pt. 1, 241 p., 12 pl.