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Proconodontus
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Distacodontacea
Family:
Proconodontidae
Formal Genus Name and Reference:
Proconodontus MILLER, 1969, p. 437
Type Species:
P. mülleri, OD
Images
(Click to enlarge in a new window)
Fig. 95, 2. *P. muelleri, holotype, U.Cam., USA (Utah), 2 a-c, ant. and lat. views, transv. sec., X33 (Miller, 1969).
Synonyms
Geographic Distribution
N.Am. (N.Y., widespread in W. and SW. states of USA-Alberta-Dist.-Mackenzie, Arctic Islands)-Asia (Iran)-Australia (Queensl.)
Age Range
Beginning Stage in Treatise Usage:
U.Cam., ?L.Ord.
Beginning International Stage:
Guzhangian
Fraction Up In Beginning Stage:
50
Beginning Date:
498.75
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Large, proclined elements, essentially symmetrical but some slightly bent laterally, anterior keel absent in some, posterior keel variable in length (very short and present only near tip in some), serrate in some, cross section oval. [Based on stratigraphic occurrence and morphology, this genus appears to be the most primitive representative of the order Conodontophorida.]
References
Clark, D. L., , & Behnken, F. H., , & Miller, J. F., 1969, Early cvolution of conodonts: Geol. Soc. Am. Bull., v. 80, p. 125134, 8 text-fig.
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Distacodontacea
Family:
Proconodontidae
Formal Genus Name and Reference:
Proconodontus MILLER, 1969, p. 437
Type Species:
P. mülleri, OD
Images
(Click to enlarge in a new window)
Fig. 95, 2. *P. muelleri, holotype, U.Cam., USA (Utah), 2 a-c, ant. and lat. views, transv. sec., X33 (Miller, 1969).
Synonyms
Geographic Distribution
N.Am. (N.Y., widespread in W. and SW. states of USA-Alberta-Dist.-Mackenzie, Arctic Islands)-Asia (Iran)-Australia (Queensl.)
Age Range
Beginning Stage in Treatise Usage:
U.Cam., ?L.Ord.
Beginning International Stage:
Guzhangian
Fraction Up In Beginning Stage:
50
Beginning Date:
498.75
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Large, proclined elements, essentially symmetrical but some slightly bent laterally, anterior keel absent in some, posterior keel variable in length (very short and present only near tip in some), serrate in some, cross section oval. [Based on stratigraphic occurrence and morphology, this genus appears to be the most primitive representative of the order Conodontophorida.]
References
Clark, D. L., , & Behnken, F. H., , & Miller, J. F., 1969, Early cvolution of conodonts: Geol. Soc. Am. Bull., v. 80, p. 125134, 8 text-fig.