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Clydagnathus
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Polygnathacea
Family:
Cavusgnathidae
Formal Genus Name and Reference:
Clydagnathus Rhodes, Austin, & DRUCE, 1969, p. 84
Type Species:
*C. cautusformis, OD
Images
(Click to enlarge in a new window)
Fig. 108, 7. C. gilwernensis RHODES, AUSTIN, & DRUCE, 10w.Tournais., Eu.(Wales); 7a,b, Pa element, lat. and upper views, X25 (Austin & Hill, 1973).
Synonyms
Geographic Distribution
U.Dev.-L.Miss., N.Am., U.Dev.-L.Carb. (low.Tournais.), Eu.
Age Range
Beginning Stage in Treatise Usage:
U.Dev.
Beginning International Stage:
Frasnian
Fraction Up In Beginning Stage:
0
Beginning Date:
378.9
Ending Stage in Treatise Usage:
L.Miss., N.Am., U.Dev.-L.Carb. , Eu. (low.Tournais.)
Ending International Stage:
Tournaisian
Fraction Up In Ending Stage:
33
Ending Date:
355.15
Description
Pectiniform element scaphate with denticles of free blade highest at posterior end, short fixed blade joining platform on outer right margin, carina restricted to posterior, in some continuing as short free blade, medial trough, basal cavity asymmetrical. [This element resembles pectiniform elements of Cavusgnathus and Adetognathus.]
References
, Conil, Raphael, Groessens, Eric, & Pirlet, H., , & Hill, P. J., , & Mitchell, M., , & Rhodes, F. H. T., 1969, A conodont assemblage from the Carboniferous of the Avon Gorge, Bristol: Palaeontology, v. 12, p. 400-405, I text-fig.
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Polygnathacea
Family:
Cavusgnathidae
Formal Genus Name and Reference:
Clydagnathus Rhodes, Austin, & DRUCE, 1969, p. 84
Type Species:
*C. cautusformis, OD
Images
(Click to enlarge in a new window)
Fig. 108, 7. C. gilwernensis RHODES, AUSTIN, & DRUCE, 10w.Tournais., Eu.(Wales); 7a,b, Pa element, lat. and upper views, X25 (Austin & Hill, 1973).
Synonyms
Geographic Distribution
U.Dev.-L.Miss., N.Am., U.Dev.-L.Carb. (low.Tournais.), Eu.
Age Range
Beginning Stage in Treatise Usage:
U.Dev.
Beginning International Stage:
Frasnian
Fraction Up In Beginning Stage:
0
Beginning Date:
378.9
Ending Stage in Treatise Usage:
L.Miss., N.Am., U.Dev.-L.Carb. , Eu. (low.Tournais.)
Ending International Stage:
Tournaisian
Fraction Up In Ending Stage:
33
Ending Date:
355.15
Description
Pectiniform element scaphate with denticles of free blade highest at posterior end, short fixed blade joining platform on outer right margin, carina restricted to posterior, in some continuing as short free blade, medial trough, basal cavity asymmetrical. [This element resembles pectiniform elements of Cavusgnathus and Adetognathus.]
References
, Conil, Raphael, Groessens, Eric, & Pirlet, H., , & Hill, P. J., , & Mitchell, M., , & Rhodes, F. H. T., 1969, A conodont assemblage from the Carboniferous of the Avon Gorge, Bristol: Palaeontology, v. 12, p. 400-405, I text-fig.