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Siphonodella
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Polygnathacea
Family:
Polygnathidae
Formal Genus Name and Reference:
Siphonodella Branson & MEHL, 1944, p. 245
Type Species:
Siphonognathus duplicata Branson & MEHL, 1934b, p. 296, OD
Images
(Click to enlarge in a new window)
Fig. 113, 5. S. crenulata (Cooper), L.Miss. (basal Lodgepole Ls.), USA (Mont.), 5a, b, Pa element, lower and upper views, X27 (Klapper, 1971).
Synonyms
Geographic Distribution
Eu.-N.Am.-Australia
Age Range
Beginning Stage in Treatise Usage:
U.Dev. (up.Famenn.)
Beginning International Stage:
Famennian
Fraction Up In Beginning Stage:
50
Beginning Date:
365.2
Ending Stage in Treatise Usage:
L.Miss. (Tournais.)
Ending International Stage:
Tournaisian
Fraction Up In Ending Stage:
100
Ending Date:
346.73
Description
Pa element carminiplanate like that of Polygnathus but keel generally absent just posterior of basal pit. [Only Pa element is recognized.]
References
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Polygnathacea
Family:
Polygnathidae
Formal Genus Name and Reference:
Siphonodella Branson & MEHL, 1944, p. 245
Type Species:
Siphonognathus duplicata Branson & MEHL, 1934b, p. 296, OD
Images
(Click to enlarge in a new window)
Fig. 113, 5. S. crenulata (Cooper), L.Miss. (basal Lodgepole Ls.), USA (Mont.), 5a, b, Pa element, lower and upper views, X27 (Klapper, 1971).
Synonyms
Geographic Distribution
Eu.-N.Am.-Australia
Age Range
Beginning Stage in Treatise Usage:
U.Dev. (up.Famenn.)
Beginning International Stage:
Famennian
Fraction Up In Beginning Stage:
50
Beginning Date:
365.2
Ending Stage in Treatise Usage:
L.Miss. (Tournais.)
Ending International Stage:
Tournaisian
Fraction Up In Ending Stage:
100
Ending Date:
346.73
Description
Pa element carminiplanate like that of Polygnathus but keel generally absent just posterior of basal pit. [Only Pa element is recognized.]