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Douvilleiceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ancyloceratina
Superfamily:
Douvilleicerataceae
Family:
Douvilleiceratidae
Subfamily:
Douvilleiceratinae
Formal Genus Name and Reference:
Douvilleiceras tschernyschewi SINZOW, 1906, p. 182
Type Species:
Douvilleiceras tschernyschewi SINZOW, 1906, p. 182, OD
Images
(Click to enlarge in a new window)
Fig. 208, 5a, b. *C. (E.) tschernyschewi (Sinzow), Transcaspia, X (Sinzow, 1906).
Synonyms
Geographic Distribution
Europe, eastern Africa, South Africa, Madagascar, Egypt (Sinai), Iran, Japan, California, Texas, Mexico, South America
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Upper Aptian)
Beginning International Stage:
Aptian
Fraction Up In Beginning Stage:
66
Beginning Date:
115.99
Ending Stage in Treatise Usage:
Lower Cretaceous (Upper Aptian)
Ending International Stage:
Aptian
Fraction Up In Ending Stage:
100
Ending Date:
113.2
Description
Major ribs depressed on siphon and with distinct ventrolateral tubercles until later whorls
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ancyloceratina
Superfamily:
Douvilleicerataceae
Family:
Douvilleiceratidae
Subfamily:
Douvilleiceratinae
Formal Genus Name and Reference:
Douvilleiceras tschernyschewi SINZOW, 1906, p. 182
Type Species:
Douvilleiceras tschernyschewi SINZOW, 1906, p. 182, OD
Images
(Click to enlarge in a new window)
Fig. 208, 5a, b. *C. (E.) tschernyschewi (Sinzow), Transcaspia, X (Sinzow, 1906).
Synonyms
Geographic Distribution
Europe, eastern Africa, South Africa, Madagascar, Egypt (Sinai), Iran, Japan, California, Texas, Mexico, South America
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Upper Aptian)
Beginning International Stage:
Aptian
Fraction Up In Beginning Stage:
66
Beginning Date:
115.99
Ending Stage in Treatise Usage:
Lower Cretaceous (Upper Aptian)
Ending International Stage:
Aptian
Fraction Up In Ending Stage:
100
Ending Date:
113.2
Description
Major ribs depressed on siphon and with distinct ventrolateral tubercles until later whorls