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Arieticeras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Hildocerataceae
Family:
Hildoceratidae
Subfamily:
Arieticeratinae
Formal Genus Name and Reference:
Arieticeras SEGUENZA, 1885
Type Species:
Am. algovianus OPPEL, 1862
Images
(Click to enlarge in a new window)
Fig. 287,1. *A. algovianum (Oppel), Alps, 1 a, b, X0.7 (628*)
Synonyms
Seguenziceras, Meneghinia, Emaciaticeras
Geographic Distribution
Eu.-N.Afr.-Cauc.
Age Range
Beginning Stage in Treatise Usage:
U.Pliensb.
Beginning International Stage:
Pliensbachian
Fraction Up In Beginning Stage:
50
Beginning Date:
188.55
Ending Stage in Treatise Usage:
U.Pliensb.
Ending International Stage:
Pliensbachian
Fraction Up In Ending Stage:
100
Ending Date:
184.2
Description
Whorl section quadrate to compressed, venter unicarinate with or without sulci, ribs strong, simple, distant, straight to gently falcoid.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Hildocerataceae
Family:
Hildoceratidae
Subfamily:
Arieticeratinae
Formal Genus Name and Reference:
Arieticeras SEGUENZA, 1885
Type Species:
Am. algovianus OPPEL, 1862
Images
(Click to enlarge in a new window)
Fig. 287,1. *A. algovianum (Oppel), Alps, 1 a, b, X0.7 (628*)
Synonyms
Seguenziceras, Meneghinia, Emaciaticeras
Geographic Distribution
Eu.-N.Afr.-Cauc.
Age Range
Beginning Stage in Treatise Usage:
U.Pliensb.
Beginning International Stage:
Pliensbachian
Fraction Up In Beginning Stage:
50
Beginning Date:
188.55
Ending Stage in Treatise Usage:
U.Pliensb.
Ending International Stage:
Pliensbachian
Fraction Up In Ending Stage:
100
Ending Date:
184.2
Description
Whorl section quadrate to compressed, venter unicarinate with or without sulci, ribs strong, simple, distant, straight to gently falcoid.