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Korobkovitrigonia
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Trigonioida
Superfamily:
Trigoniacea
Family:
Trigoniidae
Formal Genus Name and Reference:
Korobkovitrigonia SAVELIEV, 1958, p. 99
Type Species:
*K. korobkovi, OD
Images
(Click to enlarge in a new window)
Fig. D69,2. *K. korobkovi, L.Cret.(Alb.), C.Asia(Mangyshlak), LV ext., X0.85 (Saveliev, 1958).
Synonyms
Geographic Distribution
C.Asia-Spain-Port.-Alg.-S. Am.
Age Range
Beginning Stage in Treatise Usage:
Cret.(Barrem.)
Beginning International Stage:
Barremian
Fraction Up In Beginning Stage:
0
Beginning Date:
126.5
Ending Stage in Treatise Usage:
Cret.(Turon.)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
100
Ending Date:
89.39
Description
Ovate to suborbicular, unelongated, commonly oblique, no distinct marginal carina, area with small tubercles in earlier growth stages, later with coarse growth rugae only, flank with 2 series of steep, oblique, tuberculate costae meeting in V's except in later growth stages, where anterior or both series may be replaced by irregularly arranged tubercles or coarse rugae.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Trigonioida
Superfamily:
Trigoniacea
Family:
Trigoniidae
Formal Genus Name and Reference:
Korobkovitrigonia SAVELIEV, 1958, p. 99
Type Species:
*K. korobkovi, OD
Images
(Click to enlarge in a new window)
Fig. D69,2. *K. korobkovi, L.Cret.(Alb.), C.Asia(Mangyshlak), LV ext., X0.85 (Saveliev, 1958).
Synonyms
Geographic Distribution
C.Asia-Spain-Port.-Alg.-S. Am.
Age Range
Beginning Stage in Treatise Usage:
Cret.(Barrem.)
Beginning International Stage:
Barremian
Fraction Up In Beginning Stage:
0
Beginning Date:
126.5
Ending Stage in Treatise Usage:
Cret.(Turon.)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
100
Ending Date:
89.39
Description
Ovate to suborbicular, unelongated, commonly oblique, no distinct marginal carina, area with small tubercles in earlier growth stages, later with coarse growth rugae only, flank with 2 series of steep, oblique, tuberculate costae meeting in V's except in later growth stages, where anterior or both series may be replaced by irregularly arranged tubercles or coarse rugae.