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Linotrigonia
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Trigonioida
Superfamily:
Trigoniacea
Family:
Trigoniidae
Formal Genus Name and Reference:
Linotrigonia van HOEPEN, 1929, p. 15
Type Species:
L. linifera, OD
Images
(Click to enlarge in a new window)
Fig. D71,1. L. (L.) elegans (Baily), L.Cret.(Alb.), S.Afr., LV ext., X2 (Woods, 1906).
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
U.Jur.
Beginning International Stage:
Oxfordian
Fraction Up In Beginning Stage:
0
Beginning Date:
161.53
Ending Stage in Treatise Usage:
U.Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Trigonal to suborbicular, more or less compressed, marginal and escutcheon carinae obtuse, area wholly or partly ornamented with oblique costae, each of which corresponds to and diverges in chevron-like manner from one on flank, flank with steeply inclined, smooth or nodose costae
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Trigonioida
Superfamily:
Trigoniacea
Family:
Trigoniidae
Formal Genus Name and Reference:
Linotrigonia van HOEPEN, 1929, p. 15
Type Species:
L. linifera, OD
Images
(Click to enlarge in a new window)
Fig. D71,1. L. (L.) elegans (Baily), L.Cret.(Alb.), S.Afr., LV ext., X2 (Woods, 1906).
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
U.Jur.
Beginning International Stage:
Oxfordian
Fraction Up In Beginning Stage:
0
Beginning Date:
161.53
Ending Stage in Treatise Usage:
U.Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Trigonal to suborbicular, more or less compressed, marginal and escutcheon carinae obtuse, area wholly or partly ornamented with oblique costae, each of which corresponds to and diverges in chevron-like manner from one on flank, flank with steeply inclined, smooth or nodose costae