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Acanthohoplites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ancyloceratina
Superfamily:
Deshayesitaceae
Family:
Parahoplitidae
Subfamily:
Acanthohoplitinae
Formal Genus Name and Reference:
Acanthohoplites SINZOW, 1907, p. 499
Type Species:
Parahoplites aschiltaensis Anthula, 1899, p. 117 (63), SD ROMAN, 1938, p. 348
Images
(Click to enlarge in a new window)
Fig. 215, 2a-c. *A. aschiltaensis (Anthula), Caucasus, a, X, b, X0 .5, c, X (Anthula, 1899)
Synonyms
Acanthoplites; Protacanthoplites; Chaschupseceras
Geographic Distribution
Europe, Georgia, Transcaspia, eastern Africa, Madagascar, Japan, California, Arizona, Mexico
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
Early whorls coronate and much as in Cheloniceras, later whorls round, then oval in section, primary ribs with or without umbilical bullae, at first branching at prominent lateral tubercles, which later disappear, and then branching at umbilical edge alone or also at midflank.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ancyloceratina
Superfamily:
Deshayesitaceae
Family:
Parahoplitidae
Subfamily:
Acanthohoplitinae
Formal Genus Name and Reference:
Acanthohoplites SINZOW, 1907, p. 499
Type Species:
Parahoplites aschiltaensis Anthula, 1899, p. 117 (63), SD ROMAN, 1938, p. 348
Images
(Click to enlarge in a new window)
Fig. 215, 2a-c. *A. aschiltaensis (Anthula), Caucasus, a, X, b, X0 .5, c, X (Anthula, 1899)
Synonyms
Acanthoplites; Protacanthoplites; Chaschupseceras
Geographic Distribution
Europe, Georgia, Transcaspia, eastern Africa, Madagascar, Japan, California, Arizona, Mexico
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
Early whorls coronate and much as in Cheloniceras, later whorls round, then oval in section, primary ribs with or without umbilical bullae, at first branching at prominent lateral tubercles, which later disappear, and then branching at umbilical edge alone or also at midflank.