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Coreanoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Endoceratoidea
Order:
Endocerida
Family:
Manchuroceratidae
Formal Genus Name and Reference:
Coreanoceras KOBAYASHI, 1931
Type Species:
C. kemipoense, OD
Images
(Click to enlarge in a new window)
Fig. 117,2. *C. kemipoense, Korea; 2a-c, oral, ventral, lat. views, X0.7; 2d, transv. sec. of shell and siphuncle, latter showing alveolus in endoeone, X1; 2e, transv. sec. of siphuncle showing ventral convexity of enclocones and lat. endosiph. blades, X5; 2f, diagram. long. and transv. sees. (104).
Synonyms
Geographic Distribution
E. Asia-N. Am.(Md.)
Age Range
Beginning Stage in Treatise Usage:
L.Ord. (U.Canad.)
Beginning International Stage:
Floian
Fraction Up In Beginning Stage:
0
Beginning Date:
477.08
Ending Stage in Treatise Usage:
L.Ord. (U.Canad.)
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
More slender and longiconic than Manchuroceras, septal necks short; endocones subconical, their ventral side convex; lateral endosiphuncular blades present, in some forms doubled, endosiphocone with ventral elevation and alveolus; endosiphuncular tube flattened.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Endoceratoidea
Order:
Endocerida
Family:
Manchuroceratidae
Formal Genus Name and Reference:
Coreanoceras KOBAYASHI, 1931
Type Species:
C. kemipoense, OD
Images
(Click to enlarge in a new window)
Fig. 117,2. *C. kemipoense, Korea; 2a-c, oral, ventral, lat. views, X0.7; 2d, transv. sec. of shell and siphuncle, latter showing alveolus in endoeone, X1; 2e, transv. sec. of siphuncle showing ventral convexity of enclocones and lat. endosiph. blades, X5; 2f, diagram. long. and transv. sees. (104).
Synonyms
Geographic Distribution
E. Asia-N. Am.(Md.)
Age Range
Beginning Stage in Treatise Usage:
L.Ord. (U.Canad.)
Beginning International Stage:
Floian
Fraction Up In Beginning Stage:
0
Beginning Date:
477.08
Ending Stage in Treatise Usage:
L.Ord. (U.Canad.)
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
More slender and longiconic than Manchuroceras, septal necks short; endocones subconical, their ventral side convex; lateral endosiphuncular blades present, in some forms doubled, endosiphocone with ventral elevation and alveolus; endosiphuncular tube flattened.