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Intejoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Endoceratoidea
Order:
Intejocerida
Family:
Intejoceratidae
Formal Genus Name and Reference:
Intejoceras BALASHOV, 1960
Type Species:
I. angarense, OD
Images
(Click to enlarge in a new window)
Fig. 124,1. *I. angarense; 1a,b, ventral view, long. lat. sec., X1; 1c, transv. sec., X1.6; 1d, long. sec. of ectosiphuncle with thick connecting rings, X5 (4).
Synonyms
Geographic Distribution
USSR (Sib.)
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Small, straight or weakly cyrtoconic conchs with circular or slightly compressed cross section, camerae short, sutures straight. Siphuncle nearly half of conch diameter, slightly eccentric; septal necks achoanitic, connecting rings thick, convex inward, in interior of siphuncle are radially and longitudinally arranged, thick, calcitic lamellae, filling most of siphuncle except for central tube.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Endoceratoidea
Order:
Intejocerida
Family:
Intejoceratidae
Formal Genus Name and Reference:
Intejoceras BALASHOV, 1960
Type Species:
I. angarense, OD
Images
(Click to enlarge in a new window)
Fig. 124,1. *I. angarense; 1a,b, ventral view, long. lat. sec., X1; 1c, transv. sec., X1.6; 1d, long. sec. of ectosiphuncle with thick connecting rings, X5 (4).
Synonyms
Geographic Distribution
USSR (Sib.)
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Small, straight or weakly cyrtoconic conchs with circular or slightly compressed cross section, camerae short, sutures straight. Siphuncle nearly half of conch diameter, slightly eccentric; septal necks achoanitic, connecting rings thick, convex inward, in interior of siphuncle are radially and longitudinally arranged, thick, calcitic lamellae, filling most of siphuncle except for central tube.