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Plagiostoma
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Limacea
Family:
Limidae
Formal Genus Name and Reference:
Plagiostoma J. SOWERBY, 1814, p. 175
Type Species:
P. giganteum
Images
(Click to enlarge in a new window)
Fig. C107,8. *P. giganteum, L.Jur.(L.Lias.), Eng., 8a, RV ext., 8b, LV cardinal area and lunule, X0.75 (202).
Synonyms
Geographic Distribution
M.Trias.-U. Cret., cosmop.
Age Range
Beginning Stage in Treatise Usage:
M.Trias.
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
U. Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Medium-sized to large, obliquely ovate, opisthocline, length commonly slightly exceeding height, inflation moderate to strong, beaks more or less anterior to middle of moderately long cardinal area, ligament pit broad, auricles obtuse, anterior umbonal ridge well defined
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Limacea
Family:
Limidae
Formal Genus Name and Reference:
Plagiostoma J. SOWERBY, 1814, p. 175
Type Species:
P. giganteum
Images
(Click to enlarge in a new window)
Fig. C107,8. *P. giganteum, L.Jur.(L.Lias.), Eng., 8a, RV ext., 8b, LV cardinal area and lunule, X0.75 (202).
Synonyms
Geographic Distribution
M.Trias.-U. Cret., cosmop.
Age Range
Beginning Stage in Treatise Usage:
M.Trias.
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
U. Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Medium-sized to large, obliquely ovate, opisthocline, length commonly slightly exceeding height, inflation moderate to strong, beaks more or less anterior to middle of moderately long cardinal area, ligament pit broad, auricles obtuse, anterior umbonal ridge well defined