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Dendrograptus
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Dendroidea
Superfamily:
Unknown
Family:
Dendrograptidae
Formal Genus Name and Reference:
Dendrograptus HALL, 1858, p. 143
Type Species:
*Graptolithus hallianus Prout, 1851, p. 189, SD HALL, 1862, p. 21
Images
(Click to enlarge in a new window)
Fig. 149,1a. *D. hallianus (Prout), CMC IP83197, Potsdam Sandstone, Afton, Minnesota, USA, scale bar, 5 mm (Bulman, 1970, fig. 16.1b), Fig. 149,16. D. inexpectans (Poulsen, 1937), holotype, scale bar, 1 mm (Poulsen, 1937, fig. 11), Fig. 149, 1c. D. keepingii (Lapworth, 1881), holotype, Llandovery, Aberystwyth, Wales, UK, scale bar, 5 mm (Bulman, 1928, fig. 1, specimen not identified)
Synonyms
Odontocaulis, Ophiograptus
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Cambrian (Furongian (Jiangshanian))
Beginning International Stage:
Jiangshanian
Fraction Up In Beginning Stage:
0
Beginning Date:
494.2
Ending Stage in Treatise Usage:
Devonian
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
0
Ending Date:
359.3
Description
Erect, bushy dendrograptid with loosely branching stipes, stem of variable length may be present, tubular sicula with spiral line in prosicula known from one species, origin of first theca in pro- or metasicula
References
Hall, James. 1858. Descriptions of Canadian Graptolites. Note upon the genus Graptolithus, and descriptions of some remarkable new forms from the shales of the Hudson River group, discovered in the investigations of the Geological Survey of Canada, under the direction of Sir W. E. Logan, F. R. S. In W. E. Logan. 1858. Report of Progress for Geological Survey of Canada. John Lovell.
Museum or Author Information
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Dendroidea
Superfamily:
Unknown
Family:
Dendrograptidae
Formal Genus Name and Reference:
Dendrograptus HALL, 1858, p. 143
Type Species:
*Graptolithus hallianus Prout, 1851, p. 189, SD HALL, 1862, p. 21
Images
(Click to enlarge in a new window)
Fig. 149,1a. *D. hallianus (Prout), CMC IP83197, Potsdam Sandstone, Afton, Minnesota, USA, scale bar, 5 mm (Bulman, 1970, fig. 16.1b), Fig. 149,16. D. inexpectans (Poulsen, 1937), holotype, scale bar, 1 mm (Poulsen, 1937, fig. 11), Fig. 149, 1c. D. keepingii (Lapworth, 1881), holotype, Llandovery, Aberystwyth, Wales, UK, scale bar, 5 mm (Bulman, 1928, fig. 1, specimen not identified)
Synonyms
Odontocaulis, Ophiograptus
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Cambrian (Furongian (Jiangshanian))
Beginning International Stage:
Jiangshanian
Fraction Up In Beginning Stage:
0
Beginning Date:
494.2
Ending Stage in Treatise Usage:
Devonian
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
0
Ending Date:
359.3
Description
Erect, bushy dendrograptid with loosely branching stipes, stem of variable length may be present, tubular sicula with spiral line in prosicula known from one species, origin of first theca in pro- or metasicula
References
Hall, James. 1858. Descriptions of Canadian Graptolites. Note upon the genus Graptolithus, and descriptions of some remarkable new forms from the shales of the Hudson River group, discovered in the investigations of the Geological Survey of Canada, under the direction of Sir W. E. Logan, F. R. S. In W. E. Logan. 1858. Report of Progress for Geological Survey of Canada. John Lovell.