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Callograptus
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Dendroidea
Superfamily:
Unknown
Family:
Callograptidae
Formal Genus Name and Reference:
Callograptus HALL, 1865, p. 133
Type Species:
* C. elegans, SD MILLER, 1889, p. 175
Images
(Click to enlarge in a new window)
Fig. 151,3. *C. elegans, GSC 956a, lectotype, Lévis, Quebec, Canada, scale bar, 10 mm (Hall, 1865, pl. 19,2).
Synonyms
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Cambrian (Furongian)
Beginning International Stage:
Paibian
Fraction Up In Beginning Stage:
0
Beginning Date:
497
Ending Stage in Treatise Usage:
Carboniferous
Ending International Stage:
Gzhelian
Fraction Up In Ending Stage:
0
Ending Date:
298.89
Description
Tubarium conical, flabellate or irregular with or without a thecate stem, stipes branching dichotomously, attaining a subparallel to parallel orientation quickly, autothecae tubular, slightly to strongly isolate aperturally, bithecae indistinct, tubular
References
Hall, James. 1865. Figures and descriptions of Canadian organic remains. Decade II, Graptolites of the Quebec Group. Geological Survey of Canada. Dawson Brothers. Montreal. 154 p. 21 pl.
Museum or Author Information
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Dendroidea
Superfamily:
Unknown
Family:
Callograptidae
Formal Genus Name and Reference:
Callograptus HALL, 1865, p. 133
Type Species:
* C. elegans, SD MILLER, 1889, p. 175
Images
(Click to enlarge in a new window)
Fig. 151,3. *C. elegans, GSC 956a, lectotype, Lévis, Quebec, Canada, scale bar, 10 mm (Hall, 1865, pl. 19,2).
Synonyms
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Cambrian (Furongian)
Beginning International Stage:
Paibian
Fraction Up In Beginning Stage:
0
Beginning Date:
497
Ending Stage in Treatise Usage:
Carboniferous
Ending International Stage:
Gzhelian
Fraction Up In Ending Stage:
0
Ending Date:
298.89
Description
Tubarium conical, flabellate or irregular with or without a thecate stem, stipes branching dichotomously, attaining a subparallel to parallel orientation quickly, autothecae tubular, slightly to strongly isolate aperturally, bithecae indistinct, tubular
References
Hall, James. 1865. Figures and descriptions of Canadian organic remains. Decade II, Graptolites of the Quebec Group. Geological Survey of Canada. Dawson Brothers. Montreal. 154 p. 21 pl.