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Watinoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ammonitina
Superfamily:
Acanthocerataceae
Family:
Acanthoceratidae
Subfamily:
Acanthoceratinae
Formal Genus Name and Reference:
Watinoceras WARREN, 1930b, p. 66
Type Species:
W. reesidei, OD, =Acanthoceras amudariense ARKHANGELSKY, 1916, p. 48
Images
(Click to enlarge in a new window)
Fig. 119, 2a-c. *W. amudariense (Arkhangelsky), Turkestan, a, b, one specimen, X, c, another, X (Arkhangelsky, 1916).
Synonyms
Acanthoceras amudariense
Geographic Distribution
England, Morocco, Nigeria, Turkestan, Alberta, USA, Venezuela
Age Range
Beginning Stage in Treatise Usage:
Upper Cretaceous (Lower Turonian)
Beginning International Stage:
Turonian
Fraction Up In Beginning Stage:
0
Beginning Date:
93.9
Ending Stage in Treatise Usage:
Upper Cretaceous (Lower Turonian)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
25
Ending Date:
92.77
Description
Small to medium-sized, early whorls compressed, with inner and outer ventrolateral tubercles on fine ribs and flat or weakly rounded venter, in later whorls venter may become concave between rows of ventrolateral clavi or rounded with ribs crossing in chevrons, ornament may coarsen with age
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ammonitina
Superfamily:
Acanthocerataceae
Family:
Acanthoceratidae
Subfamily:
Acanthoceratinae
Formal Genus Name and Reference:
Watinoceras WARREN, 1930b, p. 66
Type Species:
W. reesidei, OD, =Acanthoceras amudariense ARKHANGELSKY, 1916, p. 48
Images
(Click to enlarge in a new window)
Fig. 119, 2a-c. *W. amudariense (Arkhangelsky), Turkestan, a, b, one specimen, X, c, another, X (Arkhangelsky, 1916).
Synonyms
Acanthoceras amudariense
Geographic Distribution
England, Morocco, Nigeria, Turkestan, Alberta, USA, Venezuela
Age Range
Beginning Stage in Treatise Usage:
Upper Cretaceous (Lower Turonian)
Beginning International Stage:
Turonian
Fraction Up In Beginning Stage:
0
Beginning Date:
93.9
Ending Stage in Treatise Usage:
Upper Cretaceous (Lower Turonian)
Ending International Stage:
Turonian
Fraction Up In Ending Stage:
25
Ending Date:
92.77
Description
Small to medium-sized, early whorls compressed, with inner and outer ventrolateral tubercles on fine ribs and flat or weakly rounded venter, in later whorls venter may become concave between rows of ventrolateral clavi or rounded with ribs crossing in chevrons, ornament may coarsen with age