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Gyronites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ceratitida
Superfamily:
Noritaceae
Family:
Gyronitidae
Formal Genus Name and Reference:
Gyronites WAAGEN, 1895
Type Species:
G. frequens
Images
(Click to enlarge in a new window)
Fig. 167,6. *G. frequens, 6a,b, x1 (548*)
Synonyms
Geographic Distribution
SaltR
Age Range
Beginning Stage in Treatise Usage:
L.Scyth.(Gyronitan)
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
46.2
Beginning Date:
250.97
Ending Stage in Treatise Usage:
L.Scyth.(Gyronitan)
Ending International Stage:
Induan
Fraction Up In Ending Stage:
100
Ending Date:
249.88
Description
Venter tabulate, sides flattened, umbilical shoulder rounded, some with strigation near periphery and on it. Suture generally with distinct auxiliary series.
References
Waagen, Wilhelm, 1895, Fossils from the Ceratite Formation: Same, ser. 13, Salt Range Fossils, v. 2, p. 1-323, pl. 1-40.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ceratitida
Superfamily:
Noritaceae
Family:
Gyronitidae
Formal Genus Name and Reference:
Gyronites WAAGEN, 1895
Type Species:
G. frequens
Images
(Click to enlarge in a new window)
Fig. 167,6. *G. frequens, 6a,b, x1 (548*)
Synonyms
Geographic Distribution
SaltR
Age Range
Beginning Stage in Treatise Usage:
L.Scyth.(Gyronitan)
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
46.2
Beginning Date:
250.97
Ending Stage in Treatise Usage:
L.Scyth.(Gyronitan)
Ending International Stage:
Induan
Fraction Up In Ending Stage:
100
Ending Date:
249.88
Description
Venter tabulate, sides flattened, umbilical shoulder rounded, some with strigation near periphery and on it. Suture generally with distinct auxiliary series.
References
Waagen, Wilhelm, 1895, Fossils from the Ceratite Formation: Same, ser. 13, Salt Range Fossils, v. 2, p. 1-323, pl. 1-40.