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Cameroceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Endoceratoidea
Order:
Endocerida
Family:
Endoceratidae
Subfamily:
Genera known from fragmentary conchs, including siphuncles, with apical end and body chamber usually known or poorly known
Formal Genus Name and Reference:
Cameroceras CONRAD, 1842
Type Species:
C. trentonensis (sic) (recte *C. trentonense, )
Images
(Click to enlarge in a new window)
Fig. 112,1. C. vertebrale (Eichwald), M.Ord., Eu. (Est.), 1a,b, adoral, ventral views (part of anterior portion of phragmocone), x0.5 (19).
Synonyms
Endoceras, Camaroceras, Rossicoceras
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
M.Ord.
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
U.Ord., ?M.Sil.
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Large to extremely large, straight conchs with circular or somewhat depressed cross section, sutures simple and straight, or with very slight ventral lobe. Siphuncle as much as half diameter of conch at maturity, mostly marginal, less commonly submarginal to subcentral in position, septal necks holochoanitic, endocones simple, endosiphuncular tube thin, situated in ventral part of siphuncle.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Endoceratoidea
Order:
Endocerida
Family:
Endoceratidae
Subfamily:
Genera known from fragmentary conchs, including siphuncles, with apical end and body chamber usually known or poorly known
Formal Genus Name and Reference:
Cameroceras CONRAD, 1842
Type Species:
C. trentonensis (sic) (recte *C. trentonense, )
Images
(Click to enlarge in a new window)
Fig. 112,1. C. vertebrale (Eichwald), M.Ord., Eu. (Est.), 1a,b, adoral, ventral views (part of anterior portion of phragmocone), x0.5 (19).
Synonyms
Endoceras, Camaroceras, Rossicoceras
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
M.Ord.
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
U.Ord., ?M.Sil.
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Large to extremely large, straight conchs with circular or somewhat depressed cross section, sutures simple and straight, or with very slight ventral lobe. Siphuncle as much as half diameter of conch at maturity, mostly marginal, less commonly submarginal to subcentral in position, septal necks holochoanitic, endocones simple, endosiphuncular tube thin, situated in ventral part of siphuncle.