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Belodella
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Panderodontacea
Family:
Belodellidae
Formal Genus Name and Reference:
Belodella ETHINGTON, 1959a, p. 271
Type Species:
Belodus devonictis STAUFFER, 1940, p. 420, OD
Images
(Click to enlarge in a new window)
Fig. 89, 2. B. silurica Barrick, Sil. (Wenlock., Kockelella stauros Z., Clarita F.), USA (Okla.), 2a, Sa element, 2 b, S c element, 2 c, M element, all lat. views, X53 (Barrick, 1977).
Synonyms
Haplobelodella
Geographic Distribution
Eu.-N.Afr.-Asia-N.Am.-Australia-S.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
U.Dev. (Frasn.)
Ending International Stage:
Frasnian
Fraction Up In Ending Stage:
100
Ending Date:
371.1
Description
Apparatus multimembrate, in Ordovician species consisting of an adenticulate nongeniculate element, an adenticulate geniculate element, and a symmetry-transition series of denticulate elements, post-Ordovician species lacking geniculate elements. Elements with short cusp and long base. Denticulate elements with numerous relatively small denticles along upper margin of base, shape of basal cross section varying from triangular to elliptical. [Apparatus reconstruction: BARRICK, 1977; CARNES, 1975, p. 11O-111; Haplobelodella is a name applied to adenticulate nongeniculate elements associated with other elements of the Belodella apparatus.]
References
Ethington, R. L., 1959a, Conodonts of the Ordovician Galena formation: J. Paleontol., v. 33, p. 257-292, 2 text-fig., pl. 39-41.
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Panderodontacea
Family:
Belodellidae
Formal Genus Name and Reference:
Belodella ETHINGTON, 1959a, p. 271
Type Species:
Belodus devonictis STAUFFER, 1940, p. 420, OD
Images
(Click to enlarge in a new window)
Fig. 89, 2. B. silurica Barrick, Sil. (Wenlock., Kockelella stauros Z., Clarita F.), USA (Okla.), 2a, Sa element, 2 b, S c element, 2 c, M element, all lat. views, X53 (Barrick, 1977).
Synonyms
Haplobelodella
Geographic Distribution
Eu.-N.Afr.-Asia-N.Am.-Australia-S.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
U.Dev. (Frasn.)
Ending International Stage:
Frasnian
Fraction Up In Ending Stage:
100
Ending Date:
371.1
Description
Apparatus multimembrate, in Ordovician species consisting of an adenticulate nongeniculate element, an adenticulate geniculate element, and a symmetry-transition series of denticulate elements, post-Ordovician species lacking geniculate elements. Elements with short cusp and long base. Denticulate elements with numerous relatively small denticles along upper margin of base, shape of basal cross section varying from triangular to elliptical. [Apparatus reconstruction: BARRICK, 1977; CARNES, 1975, p. 11O-111; Haplobelodella is a name applied to adenticulate nongeniculate elements associated with other elements of the Belodella apparatus.]
References
Ethington, R. L., 1959a, Conodonts of the Ordovician Galena formation: J. Paleontol., v. 33, p. 257-292, 2 text-fig., pl. 39-41.