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Paragnathodus
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Polygnathacea
Family:
Idiognathodontidae
Formal Genus Name and Reference:
Paragnathodus HIGGINS, 1975, p. 70
Type Species:
Spathognathodus commutatus Branson & MEHL, 1941c, p. 98, OD
Images
(Click to enlarge in a new window)
Fig. 109, 2. *P. commutatus (Branson & Mehl), Viscan, Eu. (Eng.), Pa element, upper view, X40 (Higgins, 1975)
Synonyms
Paragnathodus
Geographic Distribution
N.Am.-Eu.
Age Range
Beginning Stage in Treatise Usage:
U.Miss.
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
L.Penn. (Visean-low.Namur.)
Ending International Stage:
Serpukhovian
Fraction Up In Ending Stage:
100
Ending Date:
323.4
Description
Apparatus unknown, possibly resembling that of Gnathodus, Pectiniform element scaphate with free medial blade equaling platform in length or longer, platform oval to circular in form, unornamented or ornamented with one or few nodes, nodes in some linear, carina commonly thickened. [This element resembles the pectiniform element of Protognathodus.]
References
Higgins, A. C., 1975, Conodont zonation of the late Viscan-early Westphalian strata of the south and central Pennines of northern England: Bull. Geol. Surv. G.B., no. 53, 90 p., 14 text-fig., 18 pl.
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Polygnathacea
Family:
Idiognathodontidae
Formal Genus Name and Reference:
Paragnathodus HIGGINS, 1975, p. 70
Type Species:
Spathognathodus commutatus Branson & MEHL, 1941c, p. 98, OD
Images
(Click to enlarge in a new window)
Fig. 109, 2. *P. commutatus (Branson & Mehl), Viscan, Eu. (Eng.), Pa element, upper view, X40 (Higgins, 1975)
Synonyms
Paragnathodus
Geographic Distribution
N.Am.-Eu.
Age Range
Beginning Stage in Treatise Usage:
U.Miss.
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
L.Penn. (Visean-low.Namur.)
Ending International Stage:
Serpukhovian
Fraction Up In Ending Stage:
100
Ending Date:
323.4
Description
Apparatus unknown, possibly resembling that of Gnathodus, Pectiniform element scaphate with free medial blade equaling platform in length or longer, platform oval to circular in form, unornamented or ornamented with one or few nodes, nodes in some linear, carina commonly thickened. [This element resembles the pectiniform element of Protognathodus.]
References
Higgins, A. C., 1975, Conodont zonation of the late Viscan-early Westphalian strata of the south and central Pennines of northern England: Bull. Geol. Surv. G.B., no. 53, 90 p., 14 text-fig., 18 pl.