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Westergaardodina
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Paraconodontida
Superfamily:
Furnishinacea
Family:
Westergaardodinidae
Formal Genus Name and Reference:
Westergaardodina MÜLLER, 1959, p. 465
Type Species:
W. bicuspidata, OD
Images
(Click to enlarge in a new window)
FIG. 66,1. ·W. bicuspidata, U.Cam.(Zone 5d), Eu.(Ger.); about X55 Muller, 1959).
Synonyms
Geographic Distribution
N. Am. (N.Y.-widespread in W. and SW. states of USA), Eu. (Pol.-Sweden-Ger., glacial erratics), Asia (Sib.-China-Turkey-Iran) -Australia (Queensl.) .
Age Range
Beginning Stage in Treatise Usage:
M.Cam.
Beginning International Stage:
Cambrian Stage 4
Fraction Up In Beginning Stage:
40
Beginning Date:
512.3
Ending Stage in Treatise Usage:
M.Ord.
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
100
Ending Date:
458.18
Description
Unimembrate elements with 2 or 3 cusplike projections, middle projection, if present, usually smaller, basal cavity large, in symmetrical forms may be replaced by 2 lateral cavities, or in asymmetrical forms by single lateral cavity. Small spheres associated with type species may belong to same taxon.
References
Müller, K. J., , & Andres, D., , & Clark, D. L., , & Mosher, L. C., , & Müller, E. M., , & Nogami, Yasuo, 1971, Über den Feinbau der Conodonten: Mem. Fac. Sci. Kyoto Univ. Ser. Geol. Mineral., v. 38, p. 1-88, 31 text-fig., pl. 1-22.
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Paraconodontida
Superfamily:
Furnishinacea
Family:
Westergaardodinidae
Formal Genus Name and Reference:
Westergaardodina MÜLLER, 1959, p. 465
Type Species:
W. bicuspidata, OD
Images
(Click to enlarge in a new window)
FIG. 66,1. ·W. bicuspidata, U.Cam.(Zone 5d), Eu.(Ger.); about X55 Muller, 1959).
Synonyms
Geographic Distribution
N. Am. (N.Y.-widespread in W. and SW. states of USA), Eu. (Pol.-Sweden-Ger., glacial erratics), Asia (Sib.-China-Turkey-Iran) -Australia (Queensl.) .
Age Range
Beginning Stage in Treatise Usage:
M.Cam.
Beginning International Stage:
Cambrian Stage 4
Fraction Up In Beginning Stage:
40
Beginning Date:
512.3
Ending Stage in Treatise Usage:
M.Ord.
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
100
Ending Date:
458.18
Description
Unimembrate elements with 2 or 3 cusplike projections, middle projection, if present, usually smaller, basal cavity large, in symmetrical forms may be replaced by 2 lateral cavities, or in asymmetrical forms by single lateral cavity. Small spheres associated with type species may belong to same taxon.
References
Müller, K. J., , & Andres, D., , & Clark, D. L., , & Mosher, L. C., , & Müller, E. M., , & Nogami, Yasuo, 1971, Über den Feinbau der Conodonten: Mem. Fac. Sci. Kyoto Univ. Ser. Geol. Mineral., v. 38, p. 1-88, 31 text-fig., pl. 1-22.