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Strenoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Perisphinctaceae
Family:
Parkinsoniidae
Formal Genus Name and Reference:
Strenoceras HYATT, 1900
Type Species:
Am. niortensis d'Orbigny, 1846 (=Am. bajocensis DEFRANCE, 1830)
Images
(Click to enlarge in a new window)
Fig. 381,1. *S. bajocense (Defr.), Fr., 1a,b, holotype, x1 (675*)
Synonyms
Geographic Distribution
Eu.-N.Afr.-Cauc.
Age Range
Beginning Stage in Treatise Usage:
U.Baj.
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
45
Beginning Date:
169.67
Ending Stage in Treatise Usage:
U.Baj.
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
100
Ending Date:
168.17
Description
Ribs very strong, sharp, straight, mostly simple, with lateral and ventral tubercles, aperture with lappets
References
Hyatt, Alpheus, 1900, Cephalopoda: in Zittel, K. A., Textbook of Palaeontology, 1st English ed., transl. Eastman, C. R., p. 502-592, fig. 1049-1235.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Perisphinctaceae
Family:
Parkinsoniidae
Formal Genus Name and Reference:
Strenoceras HYATT, 1900
Type Species:
Am. niortensis d'Orbigny, 1846 (=Am. bajocensis DEFRANCE, 1830)
Images
(Click to enlarge in a new window)
Fig. 381,1. *S. bajocense (Defr.), Fr., 1a,b, holotype, x1 (675*)
Synonyms
Geographic Distribution
Eu.-N.Afr.-Cauc.
Age Range
Beginning Stage in Treatise Usage:
U.Baj.
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
45
Beginning Date:
169.67
Ending Stage in Treatise Usage:
U.Baj.
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
100
Ending Date:
168.17
Description
Ribs very strong, sharp, straight, mostly simple, with lateral and ventral tubercles, aperture with lappets
References
Hyatt, Alpheus, 1900, Cephalopoda: in Zittel, K. A., Textbook of Palaeontology, 1st English ed., transl. Eastman, C. R., p. 502-592, fig. 1049-1235.