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Euhoploceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Eoderocerataceae
Family:
Sonniniidae
Formal Genus Name and Reference:
Euhoploceras BUCKMAN, 1913
Type Species:
Sonninia acanthodes BUCK., 1889
Images
(Click to enlarge in a new window)
Fig. 311,11. OS. (E.) aeanthodes, Eng.; X0.25 (595°)
Synonyms
Geographic Distribution
L.Baj.(concavum z.)-M.Baj.
Age Range
Beginning Stage in Treatise Usage:
L.Baj.(concavum z.)
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
0
Beginning Date:
170.9
Ending Stage in Treatise Usage:
M.Baj.
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
66
Ending Date:
169.1
Description
Similar to Sonninia but tubercles die out earlier and rursiradiate ribbing and tall keel persist over body chamber. Subgen. of Sonninia.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Eoderocerataceae
Family:
Sonniniidae
Formal Genus Name and Reference:
Euhoploceras BUCKMAN, 1913
Type Species:
Sonninia acanthodes BUCK., 1889
Images
(Click to enlarge in a new window)
Fig. 311,11. OS. (E.) aeanthodes, Eng.; X0.25 (595°)
Synonyms
Geographic Distribution
L.Baj.(concavum z.)-M.Baj.
Age Range
Beginning Stage in Treatise Usage:
L.Baj.(concavum z.)
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
0
Beginning Date:
170.9
Ending Stage in Treatise Usage:
M.Baj.
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
66
Ending Date:
169.1
Description
Similar to Sonninia but tubercles die out earlier and rursiradiate ribbing and tall keel persist over body chamber. Subgen. of Sonninia.