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Collignoniceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ammonitina
Superfamily:
Acanthocerataceae
Family:
Collignoniceratidae
Subfamily:
Collignoniceratinae
Formal Genus Name and Reference:
Collignoniceras Breistroffer, 1947a, unpaged, ICZN Opinion 861, 1968, Generic Name No. 1798 (non Hoepen, 1955b, p. 361), nom. nov. pro Prionotropis Meek, 1876, p. 453, non FIEBER, 1853, p. 127
Type Species:
Ammonites woollgari MANTELL, 1822, p. 197, OD, ICZN Specific Name No. 2251
Images
(Click to enlarge in a new window)
Fig. 141, 3a, b. * C. woollgari (Mantell), England, X0.5 (Sharpe, 1853-1857)
Synonyms
Selwynoceras
Geographic Distribution
Europe, Turkestan, Japan, Bathurst Island, Canada, USA, Mexico, Colombia
Age Range
Beginning Stage in Treatise Usage:
Upper Cretaceous (Turonian)
Beginning International Stage:
Turonian
Fraction Up In Beginning Stage:
0
Beginning Date:
93.9
Ending Stage in Treatise Usage:
Upper Cretaceous (Turonian)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
100
Ending Date:
89.39
Description
Compressed in early stages, siphonal tubercles rounded or high and clavate, forming a serrate keel, the serrations corresponding in number with the ribs, ribs straight or slightly sinuous, with weak umbilical and strong inner and outer ventrolateral tubercles
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ammonitina
Superfamily:
Acanthocerataceae
Family:
Collignoniceratidae
Subfamily:
Collignoniceratinae
Formal Genus Name and Reference:
Collignoniceras Breistroffer, 1947a, unpaged, ICZN Opinion 861, 1968, Generic Name No. 1798 (non Hoepen, 1955b, p. 361), nom. nov. pro Prionotropis Meek, 1876, p. 453, non FIEBER, 1853, p. 127
Type Species:
Ammonites woollgari MANTELL, 1822, p. 197, OD, ICZN Specific Name No. 2251
Images
(Click to enlarge in a new window)
Fig. 141, 3a, b. * C. woollgari (Mantell), England, X0.5 (Sharpe, 1853-1857)
Synonyms
Selwynoceras
Geographic Distribution
Europe, Turkestan, Japan, Bathurst Island, Canada, USA, Mexico, Colombia
Age Range
Beginning Stage in Treatise Usage:
Upper Cretaceous (Turonian)
Beginning International Stage:
Turonian
Fraction Up In Beginning Stage:
0
Beginning Date:
93.9
Ending Stage in Treatise Usage:
Upper Cretaceous (Turonian)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
100
Ending Date:
89.39
Description
Compressed in early stages, siphonal tubercles rounded or high and clavate, forming a serrate keel, the serrations corresponding in number with the ribs, ribs straight or slightly sinuous, with weak umbilical and strong inner and outer ventrolateral tubercles