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Sonninia
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Eoderocerataceae
Family:
Sonniniidae
Formal Genus Name and Reference:
Sonninia BAYLE, 1879
Type Species:
Waagenia propinquans BAYLE, 1878
Images
(Click to enlarge in a new window)
Fig. 310,1. *S. (S.) propinquans (Bayle), Fr., 1 a, b, X1 (586*)
Synonyms
Stiphromorphites, Sherbornites, Sonnites
Geographic Distribution
Eu.-N.Afr.-Madag.-Cauc.-Azerbaijan-Persia-Tibet-W. Austral.-S.Alaska-Can.-Ore.-Calif.-S.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Baj.(concauum z., rare)-M.Baj.(sowerbyi z.)
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
0
Beginning Date:
170.9
Ending Stage in Treatise Usage:
M.Baj.(sauzei z.)
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
66
Ending Date:
169.1
Description
Single-keeled planulates with strong irregular ribbing bearing median row of lateral tubercles at least on early to middle whorls, body chamber becoming more or less smooth
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Eoderocerataceae
Family:
Sonniniidae
Formal Genus Name and Reference:
Sonninia BAYLE, 1879
Type Species:
Waagenia propinquans BAYLE, 1878
Images
(Click to enlarge in a new window)
Fig. 310,1. *S. (S.) propinquans (Bayle), Fr., 1 a, b, X1 (586*)
Synonyms
Stiphromorphites, Sherbornites, Sonnites
Geographic Distribution
Eu.-N.Afr.-Madag.-Cauc.-Azerbaijan-Persia-Tibet-W. Austral.-S.Alaska-Can.-Ore.-Calif.-S.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Baj.(concauum z., rare)-M.Baj.(sowerbyi z.)
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
0
Beginning Date:
170.9
Ending Stage in Treatise Usage:
M.Baj.(sauzei z.)
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
66
Ending Date:
169.1
Description
Single-keeled planulates with strong irregular ribbing bearing median row of lateral tubercles at least on early to middle whorls, body chamber becoming more or less smooth