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Ptilograptus
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Dendroidea
Superfamily:
Unknown
Family:
Callograptidae
Formal Genus Name and Reference:
Ptilograptus HALL, 1865, p. 139
Type Species:
* P. plumosus
Images
(Click to enlarge in a new window)
Fig. 151,7a. *P. plumosus, lectotype (designated herein), scale bar, 10 mm (Hall, 1865, pl. 21,1), Fig. 151,7b. P. geinitzianus Hall, 1865, GSC 561b, scale bar, 10 mm (Hall, 1865, pl. 21,6), Fig. 151,7c. P. rectus (RUEDEMANN, 1908), holotype, scale bar, 10 mm (Ruedemann, 1947, pl. 42,9), ——Fig. 151,7d. P. yunnanensis (YU), holotype, scale bar, 1 mm (adapted from Yu, 1962, pl. 1,2)
Synonyms
Geographic Distribution
Australia, Czech Republic, Canada, USA
Age Range
Beginning Stage in Treatise Usage:
Middle Ordovician (Dapingian, Didymograptellus bifidus Biozone)
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
Silurian (Wenlock, Cyrtograptus radians Biozone)
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
0
Ending Date:
426.74
Description
Tubarium with several orders of monoprogressive branches, isolated metathecae to complex twigs and stipes form later order extensions, thecal details and development unknown
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:
Ptilograptus HALL, 1865, p. 139
Type Species:
* P. plumosus
Images
(Click to enlarge in a new window)
Fig. 151,7a. *P. plumosus, lectotype (designated herein), scale bar, 10 mm (Hall, 1865, pl. 21,1), Fig. 151,7b. P. geinitzianus Hall, 1865, GSC 561b, scale bar, 10 mm (Hall, 1865, pl. 21,6), Fig. 151,7c. P. rectus (RUEDEMANN, 1908), holotype, scale bar, 10 mm (Ruedemann, 1947, pl. 42,9), ——Fig. 151,7d. P. yunnanensis (YU), holotype, scale bar, 1 mm (adapted from Yu, 1962, pl. 1,2)
Synonyms
Geographic Distribution
Australia, Czech Republic, Canada, USA
Age Range
Beginning Stage in Treatise Usage:
Middle Ordovician (Dapingian, Didymograptellus bifidus Biozone)
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
Silurian (Wenlock, Cyrtograptus radians Biozone)
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
0
Ending Date:
426.74
Description
Tubarium with several orders of monoprogressive branches, isolated metathecae to complex twigs and stipes form later order extensions, thecal details and development unknown
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.